90881820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4999}}^1$

素因数の和:5115

約数の個数: 72

約数和(自身を含む): 278460000

約数和(自身を除く): 187578180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4545, 4999, 6060, 9090, 9998, 14997, 18180, 19996, 24995, 29994, 44991, 49990, 59988, 74985, 89982, 99980, 149970, 179964, 224955, 299940, 449910, 504899, 899820, 1009798, 1514697, 2019596, 2524495, 3029394, 4544091, 5048990, 6058788, 7573485, 9088182, 10097980, 15146970, 18176364, 22720455, 30293940, 45440910, 90881820]

約数ペア:

[(1, 90881820), (2, 45440910), (3, 30293940), (4, 22720455), (5, 18176364), (6, 15146970), (9, 10097980), (10, 9088182), (12, 7573485), (15, 6058788), (18, 5048990), (20, 4544091), (30, 3029394), (36, 2524495), (45, 2019596), (60, 1514697), (90, 1009798), (101, 899820), (180, 504899), (202, 449910), (303, 299940), (404, 224955), (505, 179964), (606, 149970), (909, 99980), (1010, 89982), (1212, 74985), (1515, 59988), (1818, 49990), (2020, 44991), (3030, 29994), (3636, 24995), (4545, 19996), (4999, 18180), (6060, 14997), (9090, 9998)]