615550000

素因数分解:

$2^4\times 5^5\times {\mathrm{13}}^1\times {\mathrm{947}}^1$

素因数の和:993

約数の個数: 120

約数和(自身を含む): 1607053392

約数和(自身を除く): 991503392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 625, 650, 947, 1000, 1040, 1250, 1300, 1625, 1894, 2000, 2500, 2600, 3125, 3250, 3788, 4735, 5000, 5200, 6250, 6500, 7576, 8125, 9470, 10000, 12311, 12500, 13000, 15152, 16250, 18940, 23675, 24622, 25000, 26000, 32500, 37880, 40625, 47350, 49244, 50000, 61555, 65000, 75760, 81250, 94700, 98488, 118375, 123110, 130000, 162500, 189400, 196976, 236750, 246220, 307775, 325000, 378800, 473500, 492440, 591875, 615550, 650000, 947000, 984880, 1183750, 1231100, 1538875, 1894000, 2367500, 2462200, 2959375, 3077750, 4735000, 4924400, 5918750, 6155500, 7694375, 9470000, 11837500, 12311000, 15388750, 23675000, 24622000, 30777500, 38471875, 47350000, 61555000, 76943750, 123110000, 153887500, 307775000, 615550000]

約数ペア:

[(1, 615550000), (2, 307775000), (4, 153887500), (5, 123110000), (8, 76943750), (10, 61555000), (13, 47350000), (16, 38471875), (20, 30777500), (25, 24622000), (26, 23675000), (40, 15388750), (50, 12311000), (52, 11837500), (65, 9470000), (80, 7694375), (100, 6155500), (104, 5918750), (125, 4924400), (130, 4735000), (200, 3077750), (208, 2959375), (250, 2462200), (260, 2367500), (325, 1894000), (400, 1538875), (500, 1231100), (520, 1183750), (625, 984880), (650, 947000), (947, 650000), (1000, 615550), (1040, 591875), (1250, 492440), (1300, 473500), (1625, 378800), (1894, 325000), (2000, 307775), (2500, 246220), (2600, 236750), (3125, 196976), (3250, 189400), (3788, 162500), (4735, 130000), (5000, 123110), (5200, 118375), (6250, 98488), (6500, 94700), (7576, 81250), (8125, 75760), (9470, 65000), (10000, 61555), (12311, 50000), (12500, 49244), (13000, 47350), (15152, 40625), (16250, 37880), (18940, 32500), (23675, 26000), (24622, 25000)]