64884540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{154487}}^1$

素因数の和:154506

約数の個数: 48

約数和(自身を含む): 207631872

約数和(自身を除く): 142747332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 154487, 308974, 463461, 617948, 772435, 926922, 1081409, 1544870, 1853844, 2162818, 2317305, 3089740, 3244227, 4325636, 4634610, 5407045, 6488454, 9269220, 10814090, 12976908, 16221135, 21628180, 32442270, 64884540]

約数ペア:

[(1, 64884540), (2, 32442270), (3, 21628180), (4, 16221135), (5, 12976908), (6, 10814090), (7, 9269220), (10, 6488454), (12, 5407045), (14, 4634610), (15, 4325636), (20, 3244227), (21, 3089740), (28, 2317305), (30, 2162818), (35, 1853844), (42, 1544870), (60, 1081409), (70, 926922), (84, 772435), (105, 617948), (140, 463461), (210, 308974), (420, 154487)]