20291216

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:300

約数の個数: 60

約数和(自身を含む): 44330496

約数和(自身を除く): 24039280

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 121, 176, 188, 223, 242, 376, 446, 484, 517, 752, 892, 968, 1034, 1784, 1936, 2068, 2453, 3568, 4136, 4906, 5687, 8272, 9812, 10481, 11374, 19624, 20962, 22748, 26983, 39248, 41924, 45496, 53966, 83848, 90992, 107932, 115291, 167696, 215864, 230582, 431728, 461164, 922328, 1268201, 1844656, 2536402, 5072804, 10145608, 20291216]

約数ペア:

[(1, 20291216), (2, 10145608), (4, 5072804), (8, 2536402), (11, 1844656), (16, 1268201), (22, 922328), (44, 461164), (47, 431728), (88, 230582), (94, 215864), (121, 167696), (176, 115291), (188, 107932), (223, 90992), (242, 83848), (376, 53966), (446, 45496), (484, 41924), (517, 39248), (752, 26983), (892, 22748), (968, 20962), (1034, 19624), (1784, 11374), (1936, 10481), (2068, 9812), (2453, 8272), (3568, 5687), (4136, 4906)]