153940660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{2099}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 342216000

約数和(自身を除く): 188275340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 193, 380, 386, 772, 965, 1930, 2099, 3667, 3860, 4198, 7334, 8396, 10495, 14668, 18335, 20990, 36670, 39881, 41980, 73340, 79762, 159524, 199405, 398810, 405107, 797620, 810214, 1620428, 2025535, 4051070, 7697033, 8102140, 15394066, 30788132, 38485165, 76970330, 153940660]

約数ペア:

[(1, 153940660), (2, 76970330), (4, 38485165), (5, 30788132), (10, 15394066), (19, 8102140), (20, 7697033), (38, 4051070), (76, 2025535), (95, 1620428), (190, 810214), (193, 797620), (380, 405107), (386, 398810), (772, 199405), (965, 159524), (1930, 79762), (2099, 73340), (3667, 41980), (3860, 39881), (4198, 36670), (7334, 20990), (8396, 18335), (10495, 14668)]