1618502080

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20477}}^1$

素因数の和:20526

約数の個数: 112

約数和(自身を含む): 4369186080

約数和(自身を除く): 2750684000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 320, 380, 416, 494, 520, 608, 760, 832, 988, 1040, 1216, 1235, 1520, 1976, 2080, 2470, 3040, 3952, 4160, 4940, 6080, 7904, 9880, 15808, 19760, 20477, 39520, 40954, 79040, 81908, 102385, 163816, 204770, 266201, 327632, 389063, 409540, 532402, 655264, 778126, 819080, 1064804, 1310528, 1331005, 1556252, 1638160, 1945315, 2129608, 2662010, 3112504, 3276320, 3890630, 4259216, 5057819, 5324020, 6225008, 6552640, 7781260, 8518432, 10115638, 10648040, 12450016, 15562520, 17036864, 20231276, 21296080, 24900032, 25289095, 31125040, 40462552, 42592160, 50578190, 62250080, 80925104, 85184320, 101156380, 124500160, 161850208, 202312760, 323700416, 404625520, 809251040, 1618502080]

約数ペア:

[(1, 1618502080), (2, 809251040), (4, 404625520), (5, 323700416), (8, 202312760), (10, 161850208), (13, 124500160), (16, 101156380), (19, 85184320), (20, 80925104), (26, 62250080), (32, 50578190), (38, 42592160), (40, 40462552), (52, 31125040), (64, 25289095), (65, 24900032), (76, 21296080), (80, 20231276), (95, 17036864), (104, 15562520), (130, 12450016), (152, 10648040), (160, 10115638), (190, 8518432), (208, 7781260), (247, 6552640), (260, 6225008), (304, 5324020), (320, 5057819), (380, 4259216), (416, 3890630), (494, 3276320), (520, 3112504), (608, 2662010), (760, 2129608), (832, 1945315), (988, 1638160), (1040, 1556252), (1216, 1331005), (1235, 1310528), (1520, 1064804), (1976, 819080), (2080, 778126), (2470, 655264), (3040, 532402), (3952, 409540), (4160, 389063), (4940, 327632), (6080, 266201), (7904, 204770), (9880, 163816), (15808, 102385), (19760, 81908), (20477, 79040), (39520, 40954)]