15120820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 39626496

約数和(自身を除く): 24505676

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 44, 52, 55, 65, 68, 85, 110, 130, 143, 170, 187, 220, 221, 260, 286, 311, 340, 374, 442, 572, 622, 715, 748, 884, 935, 1105, 1244, 1430, 1555, 1870, 2210, 2431, 2860, 3110, 3421, 3740, 4043, 4420, 4862, 5287, 6220, 6842, 8086, 9724, 10574, 12155, 13684, 16172, 17105, 20215, 21148, 24310, 26435, 34210, 40430, 44473, 48620, 52870, 58157, 68420, 68731, 80860, 88946, 105740, 116314, 137462, 177892, 222365, 232628, 274924, 290785, 343655, 444730, 581570, 687310, 756041, 889460, 1163140, 1374620, 1512082, 3024164, 3780205, 7560410, 15120820]

約数ペア:

[(1, 15120820), (2, 7560410), (4, 3780205), (5, 3024164), (10, 1512082), (11, 1374620), (13, 1163140), (17, 889460), (20, 756041), (22, 687310), (26, 581570), (34, 444730), (44, 343655), (52, 290785), (55, 274924), (65, 232628), (68, 222365), (85, 177892), (110, 137462), (130, 116314), (143, 105740), (170, 88946), (187, 80860), (220, 68731), (221, 68420), (260, 58157), (286, 52870), (311, 48620), (340, 44473), (374, 40430), (442, 34210), (572, 26435), (622, 24310), (715, 21148), (748, 20215), (884, 17105), (935, 16172), (1105, 13684), (1244, 12155), (1430, 10574), (1555, 9724), (1870, 8086), (2210, 6842), (2431, 6220), (2860, 5287), (3110, 4862), (3421, 4420), (3740, 4043)]