207980500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{653}}^1$

素因数の和:699

約数の個数: 144

約数和(自身を含む): 569906064

約数和(自身を除く): 361925564

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 49, 50, 52, 65, 70, 91, 98, 100, 125, 130, 140, 175, 182, 196, 245, 250, 260, 325, 350, 364, 455, 490, 500, 637, 650, 653, 700, 875, 910, 980, 1225, 1274, 1300, 1306, 1625, 1750, 1820, 2275, 2450, 2548, 2612, 3185, 3250, 3265, 3500, 4550, 4571, 4900, 6125, 6370, 6500, 6530, 8489, 9100, 9142, 11375, 12250, 12740, 13060, 15925, 16325, 16978, 18284, 22750, 22855, 24500, 31850, 31997, 32650, 33956, 42445, 45500, 45710, 59423, 63700, 63994, 65300, 79625, 81625, 84890, 91420, 114275, 118846, 127988, 159250, 159985, 163250, 169780, 212225, 228550, 237692, 297115, 318500, 319970, 326500, 415961, 424450, 457100, 571375, 594230, 639940, 799925, 831922, 848900, 1061125, 1142750, 1188460, 1485575, 1599850, 1663844, 2079805, 2122250, 2285500, 2971150, 3199700, 3999625, 4159610, 4244500, 5942300, 7427875, 7999250, 8319220, 10399025, 14855750, 15998500, 20798050, 29711500, 41596100, 51995125, 103990250, 207980500]

約数ペア:

[(1, 207980500), (2, 103990250), (4, 51995125), (5, 41596100), (7, 29711500), (10, 20798050), (13, 15998500), (14, 14855750), (20, 10399025), (25, 8319220), (26, 7999250), (28, 7427875), (35, 5942300), (49, 4244500), (50, 4159610), (52, 3999625), (65, 3199700), (70, 2971150), (91, 2285500), (98, 2122250), (100, 2079805), (125, 1663844), (130, 1599850), (140, 1485575), (175, 1188460), (182, 1142750), (196, 1061125), (245, 848900), (250, 831922), (260, 799925), (325, 639940), (350, 594230), (364, 571375), (455, 457100), (490, 424450), (500, 415961), (637, 326500), (650, 319970), (653, 318500), (700, 297115), (875, 237692), (910, 228550), (980, 212225), (1225, 169780), (1274, 163250), (1300, 159985), (1306, 159250), (1625, 127988), (1750, 118846), (1820, 114275), (2275, 91420), (2450, 84890), (2548, 81625), (2612, 79625), (3185, 65300), (3250, 63994), (3265, 63700), (3500, 59423), (4550, 45710), (4571, 45500), (4900, 42445), (6125, 33956), (6370, 32650), (6500, 31997), (6530, 31850), (8489, 24500), (9100, 22855), (9142, 22750), (11375, 18284), (12250, 16978), (12740, 16325), (13060, 15925)]