128512890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11801}}^1$

素因数の和:11836

約数の個数: 72

約数和(自身を含む): 367301844

約数和(自身を除く): 238788954

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 121, 165, 198, 242, 330, 363, 495, 605, 726, 990, 1089, 1210, 1815, 2178, 3630, 5445, 10890, 11801, 23602, 35403, 59005, 70806, 106209, 118010, 129811, 177015, 212418, 259622, 354030, 389433, 531045, 649055, 778866, 1062090, 1168299, 1298110, 1427921, 1947165, 2336598, 2855842, 3894330, 4283763, 5841495, 7139605, 8567526, 11682990, 12851289, 14279210, 21418815, 25702578, 42837630, 64256445, 128512890]

約数ペア:

[(1, 128512890), (2, 64256445), (3, 42837630), (5, 25702578), (6, 21418815), (9, 14279210), (10, 12851289), (11, 11682990), (15, 8567526), (18, 7139605), (22, 5841495), (30, 4283763), (33, 3894330), (45, 2855842), (55, 2336598), (66, 1947165), (90, 1427921), (99, 1298110), (110, 1168299), (121, 1062090), (165, 778866), (198, 649055), (242, 531045), (330, 389433), (363, 354030), (495, 259622), (605, 212418), (726, 177015), (990, 129811), (1089, 118010), (1210, 106209), (1815, 70806), (2178, 59005), (3630, 35403), (5445, 23602), (10890, 11801)]