249389920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:465

約数の個数: 144

約数和(自身を含む): 667390752

約数和(自身を除く): 418000832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 169, 184, 208, 230, 260, 299, 338, 368, 401, 416, 460, 520, 598, 676, 736, 802, 845, 920, 1040, 1196, 1352, 1495, 1604, 1690, 1840, 2005, 2080, 2392, 2704, 2990, 3208, 3380, 3680, 3887, 4010, 4784, 5213, 5408, 5980, 6416, 6760, 7774, 8020, 9223, 9568, 10426, 11960, 12832, 13520, 15548, 16040, 18446, 19435, 20852, 23920, 26065, 27040, 31096, 32080, 36892, 38870, 41704, 46115, 47840, 52130, 62192, 64160, 67769, 73784, 77740, 83408, 92230, 104260, 119899, 124384, 135538, 147568, 155480, 166816, 184460, 208520, 239798, 271076, 295136, 310960, 338845, 368920, 417040, 479596, 542152, 599495, 621920, 677690, 737840, 834080, 959192, 1084304, 1198990, 1355380, 1475680, 1558687, 1918384, 2168608, 2397980, 2710760, 3117374, 3836768, 4795960, 5421520, 6234748, 7793435, 9591920, 10843040, 12469496, 15586870, 19183840, 24938992, 31173740, 49877984, 62347480, 124694960, 249389920]

約数ペア:

[(1, 249389920), (2, 124694960), (4, 62347480), (5, 49877984), (8, 31173740), (10, 24938992), (13, 19183840), (16, 15586870), (20, 12469496), (23, 10843040), (26, 9591920), (32, 7793435), (40, 6234748), (46, 5421520), (52, 4795960), (65, 3836768), (80, 3117374), (92, 2710760), (104, 2397980), (115, 2168608), (130, 1918384), (160, 1558687), (169, 1475680), (184, 1355380), (208, 1198990), (230, 1084304), (260, 959192), (299, 834080), (338, 737840), (368, 677690), (401, 621920), (416, 599495), (460, 542152), (520, 479596), (598, 417040), (676, 368920), (736, 338845), (802, 310960), (845, 295136), (920, 271076), (1040, 239798), (1196, 208520), (1352, 184460), (1495, 166816), (1604, 155480), (1690, 147568), (1840, 135538), (2005, 124384), (2080, 119899), (2392, 104260), (2704, 92230), (2990, 83408), (3208, 77740), (3380, 73784), (3680, 67769), (3887, 64160), (4010, 62192), (4784, 52130), (5213, 47840), (5408, 46115), (5980, 41704), (6416, 38870), (6760, 36892), (7774, 32080), (8020, 31096), (9223, 27040), (9568, 26065), (10426, 23920), (11960, 20852), (12832, 19435), (13520, 18446), (15548, 16040)]