20783680

素因数分解:

$2^6\times 5^1\times {\mathrm{107}}^1\times {\mathrm{607}}^1$

素因数の和:731

約数の個数: 56

約数和(自身を含む): 50035968

約数和(自身を除く): 29252288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 160, 214, 320, 428, 535, 607, 856, 1070, 1214, 1712, 2140, 2428, 3035, 3424, 4280, 4856, 6070, 6848, 8560, 9712, 12140, 17120, 19424, 24280, 34240, 38848, 48560, 64949, 97120, 129898, 194240, 259796, 324745, 519592, 649490, 1039184, 1298980, 2078368, 2597960, 4156736, 5195920, 10391840, 20783680]

約数ペア:

[(1, 20783680), (2, 10391840), (4, 5195920), (5, 4156736), (8, 2597960), (10, 2078368), (16, 1298980), (20, 1039184), (32, 649490), (40, 519592), (64, 324745), (80, 259796), (107, 194240), (160, 129898), (214, 97120), (320, 64949), (428, 48560), (535, 38848), (607, 34240), (856, 24280), (1070, 19424), (1214, 17120), (1712, 12140), (2140, 9712), (2428, 8560), (3035, 6848), (3424, 6070), (4280, 4856)]