128447880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 256

約数和(自身を含む): 450109440

約数和(自身を除く): 321661560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 43, 44, 55, 60, 62, 66, 73, 86, 88, 93, 110, 120, 124, 129, 132, 146, 155, 165, 172, 186, 215, 219, 220, 248, 258, 264, 292, 310, 330, 341, 344, 365, 372, 430, 438, 440, 465, 473, 516, 584, 620, 645, 660, 682, 730, 744, 803, 860, 876, 930, 946, 1023, 1032, 1095, 1240, 1290, 1320, 1333, 1364, 1419, 1460, 1606, 1705, 1720, 1752, 1860, 1892, 2046, 2190, 2263, 2365, 2409, 2580, 2666, 2728, 2838, 2920, 3139, 3212, 3410, 3720, 3784, 3999, 4015, 4092, 4380, 4526, 4730, 4818, 5115, 5160, 5332, 5676, 6278, 6424, 6665, 6789, 6820, 7095, 7998, 8030, 8184, 8760, 9052, 9417, 9460, 9636, 10230, 10664, 11315, 11352, 12045, 12556, 13330, 13578, 13640, 14190, 14663, 15695, 15996, 16060, 18104, 18834, 18920, 19272, 19995, 20460, 22630, 24090, 24893, 25112, 26660, 27156, 28380, 29326, 31390, 31992, 32120, 33945, 34529, 37668, 39990, 40920, 43989, 45260, 47085, 48180, 49786, 53320, 54312, 56760, 58652, 62780, 67890, 69058, 73315, 74679, 75336, 79980, 87978, 90520, 94170, 96360, 97309, 99572, 103587, 117304, 124465, 125560, 135780, 138116, 146630, 149358, 159960, 172645, 175956, 188340, 194618, 199144, 207174, 219945, 248930, 271560, 276232, 291927, 293260, 298716, 345290, 351912, 373395, 376680, 389236, 414348, 439890, 486545, 497860, 517935, 583854, 586520, 597432, 690580, 746790, 778472, 828696, 879780, 973090, 995720, 1035870, 1070399, 1167708, 1381160, 1459635, 1493580, 1759560, 1946180, 2071740, 2140798, 2335416, 2919270, 2987160, 3211197, 3892360, 4143480, 4281596, 5351995, 5838540, 6422394, 8563192, 10703990, 11677080, 12844788, 16055985, 21407980, 25689576, 32111970, 42815960, 64223940, 128447880]

約数ペア:

[(1, 128447880), (2, 64223940), (3, 42815960), (4, 32111970), (5, 25689576), (6, 21407980), (8, 16055985), (10, 12844788), (11, 11677080), (12, 10703990), (15, 8563192), (20, 6422394), (22, 5838540), (24, 5351995), (30, 4281596), (31, 4143480), (33, 3892360), (40, 3211197), (43, 2987160), (44, 2919270), (55, 2335416), (60, 2140798), (62, 2071740), (66, 1946180), (73, 1759560), (86, 1493580), (88, 1459635), (93, 1381160), (110, 1167708), (120, 1070399), (124, 1035870), (129, 995720), (132, 973090), (146, 879780), (155, 828696), (165, 778472), (172, 746790), (186, 690580), (215, 597432), (219, 586520), (220, 583854), (248, 517935), (258, 497860), (264, 486545), (292, 439890), (310, 414348), (330, 389236), (341, 376680), (344, 373395), (365, 351912), (372, 345290), (430, 298716), (438, 293260), (440, 291927), (465, 276232), (473, 271560), (516, 248930), (584, 219945), (620, 207174), (645, 199144), (660, 194618), (682, 188340), (730, 175956), (744, 172645), (803, 159960), (860, 149358), (876, 146630), (930, 138116), (946, 135780), (1023, 125560), (1032, 124465), (1095, 117304), (1240, 103587), (1290, 99572), (1320, 97309), (1333, 96360), (1364, 94170), (1419, 90520), (1460, 87978), (1606, 79980), (1705, 75336), (1720, 74679), (1752, 73315), (1860, 69058), (1892, 67890), (2046, 62780), (2190, 58652), (2263, 56760), (2365, 54312), (2409, 53320), (2580, 49786), (2666, 48180), (2728, 47085), (2838, 45260), (2920, 43989), (3139, 40920), (3212, 39990), (3410, 37668), (3720, 34529), (3784, 33945), (3999, 32120), (4015, 31992), (4092, 31390), (4380, 29326), (4526, 28380), (4730, 27156), (4818, 26660), (5115, 25112), (5160, 24893), (5332, 24090), (5676, 22630), (6278, 20460), (6424, 19995), (6665, 19272), (6789, 18920), (6820, 18834), (7095, 18104), (7998, 16060), (8030, 15996), (8184, 15695), (8760, 14663), (9052, 14190), (9417, 13640), (9460, 13578), (9636, 13330), (10230, 12556), (10664, 12045), (11315, 11352)]