161911360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38921}}^1$

素因数の和:38951

約数の個数: 56

約数和(自身を含む): 415219896

約数和(自身を除く): 253308536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 38921, 77842, 155684, 194605, 311368, 389210, 505973, 622736, 778420, 1011946, 1245472, 1556840, 2023892, 2490944, 2529865, 3113680, 4047784, 5059730, 6227360, 8095568, 10119460, 12454720, 16191136, 20238920, 32382272, 40477840, 80955680, 161911360]

約数ペア:

[(1, 161911360), (2, 80955680), (4, 40477840), (5, 32382272), (8, 20238920), (10, 16191136), (13, 12454720), (16, 10119460), (20, 8095568), (26, 6227360), (32, 5059730), (40, 4047784), (52, 3113680), (64, 2529865), (65, 2490944), (80, 2023892), (104, 1556840), (130, 1245472), (160, 1011946), (208, 778420), (260, 622736), (320, 505973), (416, 389210), (520, 311368), (832, 194605), (1040, 155684), (2080, 77842), (4160, 38921)]