89909380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1171}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 206740800

約数和(自身を除く): 116831420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 349, 698, 1171, 1396, 1745, 2342, 3490, 3839, 4684, 5855, 6980, 7678, 11710, 12881, 15356, 19195, 23420, 25762, 38390, 51524, 64405, 76780, 128810, 257620, 408679, 817358, 1634716, 2043395, 4086790, 4495469, 8173580, 8990938, 17981876, 22477345, 44954690, 89909380]

約数ペア:

[(1, 89909380), (2, 44954690), (4, 22477345), (5, 17981876), (10, 8990938), (11, 8173580), (20, 4495469), (22, 4086790), (44, 2043395), (55, 1634716), (110, 817358), (220, 408679), (349, 257620), (698, 128810), (1171, 76780), (1396, 64405), (1745, 51524), (2342, 38390), (3490, 25762), (3839, 23420), (4684, 19195), (5855, 15356), (6980, 12881), (7678, 11710)]