20157928

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4931}}^1$

素因数の和:5017

約数の個数: 32

約数和(自身を含む): 43796160

約数和(自身を除く): 23638232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 4931, 9862, 19724, 34517, 39448, 69034, 138068, 276136, 359963, 719926, 1439852, 2519741, 2879704, 5039482, 10078964, 20157928]

約数ペア:

[(1, 20157928), (2, 10078964), (4, 5039482), (7, 2879704), (8, 2519741), (14, 1439852), (28, 719926), (56, 359963), (73, 276136), (146, 138068), (292, 69034), (511, 39448), (584, 34517), (1022, 19724), (2044, 9862), (4088, 4931)]