20113275

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 41757744

約数和(自身を除く): 21644469

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 49, 65, 75, 91, 105, 147, 175, 195, 245, 273, 325, 421, 455, 525, 637, 735, 975, 1225, 1263, 1365, 1911, 2105, 2275, 2947, 3185, 3675, 5473, 6315, 6825, 8841, 9555, 10525, 14735, 15925, 16419, 20629, 27365, 31575, 38311, 44205, 47775, 61887, 73675, 82095, 103145, 114933, 136825, 191555, 221025, 268177, 309435, 410475, 515725, 574665, 804531, 957775, 1340885, 1547175, 2873325, 4022655, 6704425, 20113275]

約数ペア:

[(1, 20113275), (3, 6704425), (5, 4022655), (7, 2873325), (13, 1547175), (15, 1340885), (21, 957775), (25, 804531), (35, 574665), (39, 515725), (49, 410475), (65, 309435), (75, 268177), (91, 221025), (105, 191555), (147, 136825), (175, 114933), (195, 103145), (245, 82095), (273, 73675), (325, 61887), (421, 47775), (455, 44205), (525, 38311), (637, 31575), (735, 27365), (975, 20629), (1225, 16419), (1263, 15925), (1365, 14735), (1911, 10525), (2105, 9555), (2275, 8841), (2947, 6825), (3185, 6315), (3675, 5473)]