817804520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{120977}}^1$

素因数の和:121014

約数の個数: 48

約数和(自身を含む): 1992507660

約数和(自身を除く): 1174703140

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 120977, 241954, 483908, 604885, 967816, 1209770, 1572701, 2419540, 3145402, 4839080, 6290804, 7863505, 12581608, 15727010, 20445113, 31454020, 40890226, 62908040, 81780452, 102225565, 163560904, 204451130, 408902260, 817804520]

約数ペア:

[(1, 817804520), (2, 408902260), (4, 204451130), (5, 163560904), (8, 102225565), (10, 81780452), (13, 62908040), (20, 40890226), (26, 31454020), (40, 20445113), (52, 15727010), (65, 12581608), (104, 7863505), (130, 6290804), (169, 4839080), (260, 3145402), (338, 2419540), (520, 1572701), (676, 1209770), (845, 967816), (1352, 604885), (1690, 483908), (3380, 241954), (6760, 120977)]