19997858500

素因数分解:

$2^2\times 5^3\times {\mathrm{67}}^1\times {\mathrm{673}}^1\times {\mathrm{887}}^1$

素因数の和:1646

約数の個数: 96

約数和(自身を含む): 44443107072

約数和(自身を除く): 24445248572

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 125, 134, 250, 268, 335, 500, 670, 673, 887, 1340, 1346, 1675, 1774, 2692, 3350, 3365, 3548, 4435, 6700, 6730, 8375, 8870, 13460, 16750, 16825, 17740, 22175, 33500, 33650, 44350, 45091, 59429, 67300, 84125, 88700, 90182, 110875, 118858, 168250, 180364, 221750, 225455, 237716, 297145, 336500, 443500, 450910, 594290, 596951, 901820, 1127275, 1188580, 1193902, 1485725, 2254550, 2387804, 2971450, 2984755, 4509100, 5636375, 5942900, 5969510, 7428625, 11272750, 11939020, 14857250, 14923775, 22545500, 29714500, 29847550, 39995717, 59695100, 74618875, 79991434, 149237750, 159982868, 199978585, 298475500, 399957170, 799914340, 999892925, 1999785850, 3999571700, 4999464625, 9998929250, 19997858500]

約数ペア:

[(1, 19997858500), (2, 9998929250), (4, 4999464625), (5, 3999571700), (10, 1999785850), (20, 999892925), (25, 799914340), (50, 399957170), (67, 298475500), (100, 199978585), (125, 159982868), (134, 149237750), (250, 79991434), (268, 74618875), (335, 59695100), (500, 39995717), (670, 29847550), (673, 29714500), (887, 22545500), (1340, 14923775), (1346, 14857250), (1675, 11939020), (1774, 11272750), (2692, 7428625), (3350, 5969510), (3365, 5942900), (3548, 5636375), (4435, 4509100), (6700, 2984755), (6730, 2971450), (8375, 2387804), (8870, 2254550), (13460, 1485725), (16750, 1193902), (16825, 1188580), (17740, 1127275), (22175, 901820), (33500, 596951), (33650, 594290), (44350, 450910), (45091, 443500), (59429, 336500), (67300, 297145), (84125, 237716), (88700, 225455), (90182, 221750), (110875, 180364), (118858, 168250)]