123008009920

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12400001}}^1$

素因数の和:12400049

約数の個数: 56

約数和(自身を含む): 302361648768

約数和(自身を除く): 179353638848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 12400001, 24800002, 49600004, 62000005, 99200008, 124000010, 198400016, 248000020, 384400031, 396800032, 496000040, 768800062, 793600064, 992000080, 1537600124, 1922000155, 1984000160, 3075200248, 3844000310, 3968000320, 6150400496, 7688000620, 12300800992, 15376001240, 24601601984, 30752002480, 61504004960, 123008009920]

約数ペア:

[(1, 123008009920), (2, 61504004960), (4, 30752002480), (5, 24601601984), (8, 15376001240), (10, 12300800992), (16, 7688000620), (20, 6150400496), (31, 3968000320), (32, 3844000310), (40, 3075200248), (62, 1984000160), (64, 1922000155), (80, 1537600124), (124, 992000080), (155, 793600064), (160, 768800062), (248, 496000040), (310, 396800032), (320, 384400031), (496, 248000020), (620, 198400016), (992, 124000010), (1240, 99200008), (1984, 62000005), (2480, 49600004), (4960, 24800002), (9920, 12400001)]