81218996

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1699}}^1$

素因数の和:1776

約数の個数: 48

約数和(自身を含む): 162792000

約数和(自身を除く): 81573004

約数列:

[1, 2, 4, 17, 19, 34, 37, 38, 68, 74, 76, 148, 323, 629, 646, 703, 1258, 1292, 1406, 1699, 2516, 2812, 3398, 6796, 11951, 23902, 28883, 32281, 47804, 57766, 62863, 64562, 115532, 125726, 129124, 251452, 548777, 1068671, 1097554, 1194397, 2137342, 2195108, 2388794, 4274684, 4777588, 20304749, 40609498, 81218996]

約数ペア:

[(1, 81218996), (2, 40609498), (4, 20304749), (17, 4777588), (19, 4274684), (34, 2388794), (37, 2195108), (38, 2137342), (68, 1194397), (74, 1097554), (76, 1068671), (148, 548777), (323, 251452), (629, 129124), (646, 125726), (703, 115532), (1258, 64562), (1292, 62863), (1406, 57766), (1699, 47804), (2516, 32281), (2812, 28883), (3398, 23902), (6796, 11951)]