20147921690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1\times {\mathrm{77999}}^1$

素因数の和:80006

約数の個数: 32

約数和(自身を含む): 39076128000

約数和(自身を除く): 18928206310

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1987, 3974, 9935, 19870, 25831, 51662, 77999, 129155, 155998, 258310, 389995, 779990, 1013987, 2027974, 5069935, 10139870, 154984013, 309968026, 774920065, 1549840130, 2014792169, 4029584338, 10073960845, 20147921690]

約数ペア:

[(1, 20147921690), (2, 10073960845), (5, 4029584338), (10, 2014792169), (13, 1549840130), (26, 774920065), (65, 309968026), (130, 154984013), (1987, 10139870), (3974, 5069935), (9935, 2027974), (19870, 1013987), (25831, 779990), (51662, 389995), (77999, 258310), (129155, 155998)]