18898220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 47609856

約数和(自身を除く): 28711636

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 31, 34, 44, 55, 62, 68, 85, 110, 124, 155, 163, 170, 187, 220, 310, 326, 340, 341, 374, 527, 620, 652, 682, 748, 815, 935, 1054, 1364, 1630, 1705, 1793, 1870, 2108, 2635, 2771, 3260, 3410, 3586, 3740, 5053, 5270, 5542, 5797, 6820, 7172, 8965, 10106, 10540, 11084, 11594, 13855, 17930, 20212, 23188, 25265, 27710, 28985, 30481, 35860, 50530, 55420, 55583, 57970, 60962, 85901, 101060, 111166, 115940, 121924, 152405, 171802, 222332, 277915, 304810, 343604, 429505, 555830, 609620, 859010, 944911, 1111660, 1718020, 1889822, 3779644, 4724555, 9449110, 18898220]

約数ペア:

[(1, 18898220), (2, 9449110), (4, 4724555), (5, 3779644), (10, 1889822), (11, 1718020), (17, 1111660), (20, 944911), (22, 859010), (31, 609620), (34, 555830), (44, 429505), (55, 343604), (62, 304810), (68, 277915), (85, 222332), (110, 171802), (124, 152405), (155, 121924), (163, 115940), (170, 111166), (187, 101060), (220, 85901), (310, 60962), (326, 57970), (340, 55583), (341, 55420), (374, 50530), (527, 35860), (620, 30481), (652, 28985), (682, 27710), (748, 25265), (815, 23188), (935, 20212), (1054, 17930), (1364, 13855), (1630, 11594), (1705, 11084), (1793, 10540), (1870, 10106), (2108, 8965), (2635, 7172), (2771, 6820), (3260, 5797), (3410, 5542), (3586, 5270), (3740, 5053)]