28918188520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55611901}}^1$

素因数の和:55611925

約数の個数: 32

約数和(自身を含む): 70070996520

約数和(自身を除く): 41152808000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55611901, 111223802, 222447604, 278059505, 444895208, 556119010, 722954713, 1112238020, 1445909426, 2224476040, 2891818852, 3614773565, 5783637704, 7229547130, 14459094260, 28918188520]

約数ペア:

[(1, 28918188520), (2, 14459094260), (4, 7229547130), (5, 5783637704), (8, 3614773565), (10, 2891818852), (13, 2224476040), (20, 1445909426), (26, 1112238020), (40, 722954713), (52, 556119010), (65, 444895208), (104, 278059505), (130, 222447604), (260, 111223802), (520, 55611901)]