64928240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:594

約数の個数: 80

約数和(自身を含む): 164052000

約数和(自身を除く): 99123760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 149, 208, 260, 298, 419, 520, 596, 745, 838, 1040, 1192, 1490, 1676, 1937, 2095, 2384, 2980, 3352, 3874, 4190, 5447, 5960, 6704, 7748, 8380, 9685, 10894, 11920, 15496, 16760, 19370, 21788, 27235, 30992, 33520, 38740, 43576, 54470, 62431, 77480, 87152, 108940, 124862, 154960, 217880, 249724, 312155, 435760, 499448, 624310, 811603, 998896, 1248620, 1623206, 2497240, 3246412, 4058015, 4994480, 6492824, 8116030, 12985648, 16232060, 32464120, 64928240]

約数ペア:

[(1, 64928240), (2, 32464120), (4, 16232060), (5, 12985648), (8, 8116030), (10, 6492824), (13, 4994480), (16, 4058015), (20, 3246412), (26, 2497240), (40, 1623206), (52, 1248620), (65, 998896), (80, 811603), (104, 624310), (130, 499448), (149, 435760), (208, 312155), (260, 249724), (298, 217880), (419, 154960), (520, 124862), (596, 108940), (745, 87152), (838, 77480), (1040, 62431), (1192, 54470), (1490, 43576), (1676, 38740), (1937, 33520), (2095, 30992), (2384, 27235), (2980, 21788), (3352, 19370), (3874, 16760), (4190, 15496), (5447, 11920), (5960, 10894), (6704, 9685), (7748, 8380)]