20600840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 50425200

約数和(自身を除く): 29824360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 173, 229, 260, 346, 458, 520, 692, 865, 916, 1145, 1384, 1730, 1832, 2249, 2290, 2977, 3460, 4498, 4580, 5954, 6920, 8996, 9160, 11245, 11908, 14885, 17992, 22490, 23816, 29770, 39617, 44980, 59540, 79234, 89960, 119080, 158468, 198085, 316936, 396170, 515021, 792340, 1030042, 1584680, 2060084, 2575105, 4120168, 5150210, 10300420, 20600840]

約数ペア:

[(1, 20600840), (2, 10300420), (4, 5150210), (5, 4120168), (8, 2575105), (10, 2060084), (13, 1584680), (20, 1030042), (26, 792340), (40, 515021), (52, 396170), (65, 316936), (104, 198085), (130, 158468), (173, 119080), (229, 89960), (260, 79234), (346, 59540), (458, 44980), (520, 39617), (692, 29770), (865, 23816), (916, 22490), (1145, 17992), (1384, 14885), (1730, 11908), (1832, 11245), (2249, 9160), (2290, 8996), (2977, 6920), (3460, 5954), (4498, 4580)]