419617360

素因数分解:

$2^4\times 5^1\times {\mathrm{997}}^1\times {\mathrm{5261}}^1$

素因数の和:6271

約数の個数: 40

約数和(自身を含む): 976774536

約数和(自身を除く): 557157176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997, 1994, 3988, 4985, 5261, 7976, 9970, 10522, 15952, 19940, 21044, 26305, 39880, 42088, 52610, 79760, 84176, 105220, 210440, 420880, 5245217, 10490434, 20980868, 26226085, 41961736, 52452170, 83923472, 104904340, 209808680, 419617360]

約数ペア:

[(1, 419617360), (2, 209808680), (4, 104904340), (5, 83923472), (8, 52452170), (10, 41961736), (16, 26226085), (20, 20980868), (40, 10490434), (80, 5245217), (997, 420880), (1994, 210440), (3988, 105220), (4985, 84176), (5261, 79760), (7976, 52610), (9970, 42088), (10522, 39880), (15952, 26305), (19940, 21044)]