163640475

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 313372800

約数和(自身を除く): 149732325

約数列:

[1, 3, 5, 9, 15, 25, 29, 31, 45, 75, 87, 93, 145, 155, 225, 261, 279, 435, 465, 725, 775, 809, 899, 1305, 1395, 2175, 2325, 2427, 2697, 4045, 4495, 6525, 6975, 7281, 8091, 12135, 13485, 20225, 22475, 23461, 25079, 36405, 40455, 60675, 67425, 70383, 75237, 117305, 125395, 182025, 202275, 211149, 225711, 351915, 376185, 586525, 626975, 727291, 1055745, 1128555, 1759575, 1880925, 2181873, 3636455, 5278725, 5642775, 6545619, 10909365, 18182275, 32728095, 54546825, 163640475]

約数ペア:

[(1, 163640475), (3, 54546825), (5, 32728095), (9, 18182275), (15, 10909365), (25, 6545619), (29, 5642775), (31, 5278725), (45, 3636455), (75, 2181873), (87, 1880925), (93, 1759575), (145, 1128555), (155, 1055745), (225, 727291), (261, 626975), (279, 586525), (435, 376185), (465, 351915), (725, 225711), (775, 211149), (809, 202275), (899, 182025), (1305, 125395), (1395, 117305), (2175, 75237), (2325, 70383), (2427, 67425), (2697, 60675), (4045, 40455), (4495, 36405), (6525, 25079), (6975, 23461), (7281, 22475), (8091, 20225), (12135, 13485)]