217677825

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 404289600

約数和(自身を除く): 186611775

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 149, 151, 215, 225, 387, 447, 453, 645, 745, 755, 1075, 1341, 1359, 1935, 2235, 2265, 3225, 3725, 3775, 6407, 6493, 6705, 6795, 9675, 11175, 11325, 19221, 19479, 22499, 32035, 32465, 33525, 33975, 57663, 58437, 67497, 96105, 97395, 112495, 160175, 162325, 202491, 288315, 292185, 337485, 480525, 486975, 562475, 967457, 1012455, 1441575, 1460925, 1687425, 2902371, 4837285, 5062275, 8707113, 14511855, 24186425, 43535565, 72559275, 217677825]

約数ペア:

[(1, 217677825), (3, 72559275), (5, 43535565), (9, 24186425), (15, 14511855), (25, 8707113), (43, 5062275), (45, 4837285), (75, 2902371), (129, 1687425), (149, 1460925), (151, 1441575), (215, 1012455), (225, 967457), (387, 562475), (447, 486975), (453, 480525), (645, 337485), (745, 292185), (755, 288315), (1075, 202491), (1341, 162325), (1359, 160175), (1935, 112495), (2235, 97395), (2265, 96105), (3225, 67497), (3725, 58437), (3775, 57663), (6407, 33975), (6493, 33525), (6705, 32465), (6795, 32035), (9675, 22499), (11175, 19479), (11325, 19221)]