1657485620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{20807}}^1$

素因数の和:21392

約数の個数: 48

約数和(自身を含む): 3985148160

約数和(自身を除く): 2327662540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 569, 1138, 2276, 2845, 3983, 5690, 7966, 11380, 15932, 19915, 20807, 39830, 41614, 79660, 83228, 104035, 145649, 208070, 291298, 416140, 582596, 728245, 1456490, 2912980, 11839183, 23678366, 47356732, 59195915, 82874281, 118391830, 165748562, 236783660, 331497124, 414371405, 828742810, 1657485620]

約数ペア:

[(1, 1657485620), (2, 828742810), (4, 414371405), (5, 331497124), (7, 236783660), (10, 165748562), (14, 118391830), (20, 82874281), (28, 59195915), (35, 47356732), (70, 23678366), (140, 11839183), (569, 2912980), (1138, 1456490), (2276, 728245), (2845, 582596), (3983, 416140), (5690, 291298), (7966, 208070), (11380, 145649), (15932, 104035), (19915, 83228), (20807, 79660), (39830, 41614)]