259236440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{158071}}^1$

素因数の和:158123

約数の個数: 32

約数和(自身を含む): 597512160

約数和(自身を除く): 338275720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 158071, 316142, 632284, 790355, 1264568, 1580710, 3161420, 6322840, 6480911, 12961822, 25923644, 32404555, 51847288, 64809110, 129618220, 259236440]

約数ペア:

[(1, 259236440), (2, 129618220), (4, 64809110), (5, 51847288), (8, 32404555), (10, 25923644), (20, 12961822), (40, 6480911), (41, 6322840), (82, 3161420), (164, 1580710), (205, 1264568), (328, 790355), (410, 632284), (820, 316142), (1640, 158071)]