251207840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 192

約数和(自身を含む): 685843200

約数和(自身を除く): 434635360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 59, 65, 80, 89, 92, 104, 115, 118, 130, 160, 178, 184, 208, 230, 236, 260, 295, 299, 356, 368, 416, 445, 460, 472, 520, 590, 598, 712, 736, 767, 890, 920, 944, 1040, 1157, 1180, 1196, 1357, 1424, 1495, 1534, 1780, 1840, 1888, 2047, 2080, 2314, 2360, 2392, 2714, 2848, 2990, 3068, 3560, 3680, 3835, 4094, 4628, 4720, 4784, 5251, 5428, 5785, 5980, 6136, 6785, 7120, 7670, 8188, 9256, 9440, 9568, 10235, 10502, 10856, 11570, 11960, 12272, 13570, 14240, 15340, 16376, 17641, 18512, 20470, 21004, 21712, 23140, 23920, 24544, 26255, 26611, 27140, 30680, 32752, 35282, 37024, 40940, 42008, 43424, 46280, 47840, 52510, 53222, 54280, 61360, 65504, 68263, 70564, 81880, 84016, 88205, 92560, 105020, 106444, 108560, 120773, 122720, 133055, 136526, 141128, 163760, 168032, 176410, 185120, 210040, 212888, 217120, 241546, 266110, 273052, 282256, 327520, 341315, 352820, 420080, 425776, 483092, 532220, 546104, 564512, 603865, 682630, 705640, 840160, 851552, 966184, 1064440, 1092208, 1207730, 1365260, 1411280, 1570049, 1932368, 2128880, 2184416, 2415460, 2730520, 2822560, 3140098, 3864736, 4257760, 4830920, 5461040, 6280196, 7850245, 9661840, 10922080, 12560392, 15700490, 19323680, 25120784, 31400980, 50241568, 62801960, 125603920, 251207840]

約数ペア:

[(1, 251207840), (2, 125603920), (4, 62801960), (5, 50241568), (8, 31400980), (10, 25120784), (13, 19323680), (16, 15700490), (20, 12560392), (23, 10922080), (26, 9661840), (32, 7850245), (40, 6280196), (46, 5461040), (52, 4830920), (59, 4257760), (65, 3864736), (80, 3140098), (89, 2822560), (92, 2730520), (104, 2415460), (115, 2184416), (118, 2128880), (130, 1932368), (160, 1570049), (178, 1411280), (184, 1365260), (208, 1207730), (230, 1092208), (236, 1064440), (260, 966184), (295, 851552), (299, 840160), (356, 705640), (368, 682630), (416, 603865), (445, 564512), (460, 546104), (472, 532220), (520, 483092), (590, 425776), (598, 420080), (712, 352820), (736, 341315), (767, 327520), (890, 282256), (920, 273052), (944, 266110), (1040, 241546), (1157, 217120), (1180, 212888), (1196, 210040), (1357, 185120), (1424, 176410), (1495, 168032), (1534, 163760), (1780, 141128), (1840, 136526), (1888, 133055), (2047, 122720), (2080, 120773), (2314, 108560), (2360, 106444), (2392, 105020), (2714, 92560), (2848, 88205), (2990, 84016), (3068, 81880), (3560, 70564), (3680, 68263), (3835, 65504), (4094, 61360), (4628, 54280), (4720, 53222), (4784, 52510), (5251, 47840), (5428, 46280), (5785, 43424), (5980, 42008), (6136, 40940), (6785, 37024), (7120, 35282), (7670, 32752), (8188, 30680), (9256, 27140), (9440, 26611), (9568, 26255), (10235, 24544), (10502, 23920), (10856, 23140), (11570, 21712), (11960, 21004), (12272, 20470), (13570, 18512), (14240, 17641), (15340, 16376)]