135426920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{20771}}^1$

素因数の和:20945

約数の個数: 32

約数和(自身を含む): 306594720

約数和(自身を除く): 171167800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 20771, 41542, 83084, 103855, 166168, 207710, 415420, 830840, 3385673, 6771346, 13542692, 16928365, 27085384, 33856730, 67713460, 135426920]

約数ペア:

[(1, 135426920), (2, 67713460), (4, 33856730), (5, 27085384), (8, 16928365), (10, 13542692), (20, 6771346), (40, 3385673), (163, 830840), (326, 415420), (652, 207710), (815, 166168), (1304, 103855), (1630, 83084), (3260, 41542), (6520, 20771)]