15915698920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1871}}^1\times {\mathrm{19333}}^1$

素因数の和:21226

約数の個数: 64

約数和(自身を含む): 39088707840

約数和(自身を除く): 23173008920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1871, 3742, 7484, 9355, 14968, 18710, 19333, 20581, 37420, 38666, 41162, 74840, 77332, 82324, 96665, 102905, 154664, 164648, 193330, 205810, 212663, 386660, 411620, 425326, 773320, 823240, 850652, 1063315, 1701304, 2126630, 4253260, 8506520, 36172043, 72344086, 144688172, 180860215, 289376344, 361720430, 397892473, 723440860, 795784946, 1446881720, 1591569892, 1989462365, 3183139784, 3978924730, 7957849460, 15915698920]

約数ペア:

[(1, 15915698920), (2, 7957849460), (4, 3978924730), (5, 3183139784), (8, 1989462365), (10, 1591569892), (11, 1446881720), (20, 795784946), (22, 723440860), (40, 397892473), (44, 361720430), (55, 289376344), (88, 180860215), (110, 144688172), (220, 72344086), (440, 36172043), (1871, 8506520), (3742, 4253260), (7484, 2126630), (9355, 1701304), (14968, 1063315), (18710, 850652), (19333, 823240), (20581, 773320), (37420, 425326), (38666, 411620), (41162, 386660), (74840, 212663), (77332, 205810), (82324, 193330), (96665, 164648), (102905, 154664)]