1681280040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:464

約数の個数: 256

約数和(自身を含む): 5736407040

約数和(自身を除く): 4055127000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 124, 132, 155, 165, 181, 186, 220, 227, 248, 264, 310, 330, 341, 362, 372, 440, 454, 465, 543, 620, 660, 681, 682, 724, 744, 905, 908, 930, 1023, 1086, 1135, 1240, 1320, 1362, 1364, 1448, 1705, 1810, 1816, 1860, 1991, 2046, 2172, 2270, 2497, 2715, 2724, 2728, 3405, 3410, 3620, 3720, 3982, 4092, 4344, 4540, 4994, 5115, 5430, 5448, 5611, 5973, 6810, 6820, 7037, 7240, 7491, 7964, 8184, 9080, 9955, 9988, 10230, 10860, 11222, 11946, 12485, 13620, 13640, 14074, 14982, 15928, 16833, 19910, 19976, 20460, 21111, 21720, 22444, 23892, 24970, 27240, 28055, 28148, 29865, 29964, 33666, 35185, 37455, 39820, 40920, 41087, 42222, 44888, 47784, 49940, 56110, 56296, 59730, 59928, 61721, 67332, 70370, 74910, 77407, 79640, 82174, 84165, 84444, 99880, 105555, 112220, 119460, 123261, 123442, 134664, 140740, 149820, 154814, 164348, 168330, 168888, 185163, 205435, 211110, 224440, 232221, 238920, 246522, 246884, 281480, 299640, 308605, 309628, 328696, 336660, 370326, 387035, 410870, 422220, 451957, 464442, 493044, 493768, 616305, 617210, 619256, 673320, 740652, 774070, 821740, 844440, 903914, 925815, 928884, 986088, 1161105, 1232610, 1234420, 1273697, 1355871, 1481304, 1548140, 1643480, 1807828, 1851630, 1857768, 2259785, 2322210, 2465220, 2468840, 2547394, 2711742, 3096280, 3615656, 3703260, 3821091, 4519570, 4644420, 4930440, 5094788, 5423484, 6368485, 6779355, 7406520, 7642182, 9039140, 9288840, 10189576, 10846968, 12736970, 13558710, 14010667, 15284364, 18078280, 19105455, 25473940, 27117420, 28021334, 30568728, 38210910, 42032001, 50947880, 54234840, 56042668, 70053335, 76421820, 84064002, 112085336, 140106670, 152843640, 168128004, 210160005, 280213340, 336256008, 420320010, 560426680, 840640020, 1681280040]

約数ペア:

[(1, 1681280040), (2, 840640020), (3, 560426680), (4, 420320010), (5, 336256008), (6, 280213340), (8, 210160005), (10, 168128004), (11, 152843640), (12, 140106670), (15, 112085336), (20, 84064002), (22, 76421820), (24, 70053335), (30, 56042668), (31, 54234840), (33, 50947880), (40, 42032001), (44, 38210910), (55, 30568728), (60, 28021334), (62, 27117420), (66, 25473940), (88, 19105455), (93, 18078280), (110, 15284364), (120, 14010667), (124, 13558710), (132, 12736970), (155, 10846968), (165, 10189576), (181, 9288840), (186, 9039140), (220, 7642182), (227, 7406520), (248, 6779355), (264, 6368485), (310, 5423484), (330, 5094788), (341, 4930440), (362, 4644420), (372, 4519570), (440, 3821091), (454, 3703260), (465, 3615656), (543, 3096280), (620, 2711742), (660, 2547394), (681, 2468840), (682, 2465220), (724, 2322210), (744, 2259785), (905, 1857768), (908, 1851630), (930, 1807828), (1023, 1643480), (1086, 1548140), (1135, 1481304), (1240, 1355871), (1320, 1273697), (1362, 1234420), (1364, 1232610), (1448, 1161105), (1705, 986088), (1810, 928884), (1816, 925815), (1860, 903914), (1991, 844440), (2046, 821740), (2172, 774070), (2270, 740652), (2497, 673320), (2715, 619256), (2724, 617210), (2728, 616305), (3405, 493768), (3410, 493044), (3620, 464442), (3720, 451957), (3982, 422220), (4092, 410870), (4344, 387035), (4540, 370326), (4994, 336660), (5115, 328696), (5430, 309628), (5448, 308605), (5611, 299640), (5973, 281480), (6810, 246884), (6820, 246522), (7037, 238920), (7240, 232221), (7491, 224440), (7964, 211110), (8184, 205435), (9080, 185163), (9955, 168888), (9988, 168330), (10230, 164348), (10860, 154814), (11222, 149820), (11946, 140740), (12485, 134664), (13620, 123442), (13640, 123261), (14074, 119460), (14982, 112220), (15928, 105555), (16833, 99880), (19910, 84444), (19976, 84165), (20460, 82174), (21111, 79640), (21720, 77407), (22444, 74910), (23892, 70370), (24970, 67332), (27240, 61721), (28055, 59928), (28148, 59730), (29865, 56296), (29964, 56110), (33666, 49940), (35185, 47784), (37455, 44888), (39820, 42222), (40920, 41087)]