20005937016

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{164837}}^1$

素因数の和:165248

約数の個数: 64

約数和(自身を含む): 54000928800

約数和(自身を除く): 33994991784

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 389, 778, 1167, 1556, 2334, 3112, 4668, 5057, 9336, 10114, 15171, 20228, 30342, 40456, 60684, 121368, 164837, 329674, 494511, 659348, 989022, 1318696, 1978044, 2142881, 3956088, 4285762, 6428643, 8571524, 12857286, 17143048, 25714572, 51429144, 64121593, 128243186, 192364779, 256486372, 384729558, 512972744, 769459116, 833580709, 1538918232, 1667161418, 2500742127, 3334322836, 5001484254, 6668645672, 10002968508, 20005937016]

約数ペア:

[(1, 20005937016), (2, 10002968508), (3, 6668645672), (4, 5001484254), (6, 3334322836), (8, 2500742127), (12, 1667161418), (13, 1538918232), (24, 833580709), (26, 769459116), (39, 512972744), (52, 384729558), (78, 256486372), (104, 192364779), (156, 128243186), (312, 64121593), (389, 51429144), (778, 25714572), (1167, 17143048), (1556, 12857286), (2334, 8571524), (3112, 6428643), (4668, 4285762), (5057, 3956088), (9336, 2142881), (10114, 1978044), (15171, 1318696), (20228, 989022), (30342, 659348), (40456, 494511), (60684, 329674), (121368, 164837)]