64619880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1801}}^1$

素因数の和:1851

約数の個数: 128

約数和(自身を含む): 217969920

約数和(自身を除く): 153350040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 897, 920, 1196, 1380, 1495, 1560, 1794, 1801, 2392, 2760, 2990, 3588, 3602, 4485, 5403, 5980, 7176, 7204, 8970, 9005, 10806, 11960, 14408, 17940, 18010, 21612, 23413, 27015, 35880, 36020, 41423, 43224, 46826, 54030, 70239, 72040, 82846, 93652, 108060, 117065, 124269, 140478, 165692, 187304, 207115, 216120, 234130, 248538, 280956, 331384, 351195, 414230, 468260, 497076, 538499, 561912, 621345, 702390, 828460, 936520, 994152, 1076998, 1242690, 1404780, 1615497, 1656920, 2153996, 2485380, 2692495, 2809560, 3230994, 4307992, 4970760, 5384990, 6461988, 8077485, 10769980, 12923976, 16154970, 21539960, 32309940, 64619880]

約数ペア:

[(1, 64619880), (2, 32309940), (3, 21539960), (4, 16154970), (5, 12923976), (6, 10769980), (8, 8077485), (10, 6461988), (12, 5384990), (13, 4970760), (15, 4307992), (20, 3230994), (23, 2809560), (24, 2692495), (26, 2485380), (30, 2153996), (39, 1656920), (40, 1615497), (46, 1404780), (52, 1242690), (60, 1076998), (65, 994152), (69, 936520), (78, 828460), (92, 702390), (104, 621345), (115, 561912), (120, 538499), (130, 497076), (138, 468260), (156, 414230), (184, 351195), (195, 331384), (230, 280956), (260, 248538), (276, 234130), (299, 216120), (312, 207115), (345, 187304), (390, 165692), (460, 140478), (520, 124269), (552, 117065), (598, 108060), (690, 93652), (780, 82846), (897, 72040), (920, 70239), (1196, 54030), (1380, 46826), (1495, 43224), (1560, 41423), (1794, 36020), (1801, 35880), (2392, 27015), (2760, 23413), (2990, 21612), (3588, 18010), (3602, 17940), (4485, 14408), (5403, 11960), (5980, 10806), (7176, 9005), (7204, 8970)]