18334820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:429

約数の個数: 72

約数和(自身を含む): 45763704

約数和(自身を除く): 27428884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 196, 212, 245, 265, 353, 371, 490, 530, 706, 742, 980, 1060, 1412, 1484, 1765, 1855, 2471, 2597, 3530, 3710, 4942, 5194, 7060, 7420, 9884, 10388, 12355, 12985, 17297, 18709, 24710, 25970, 34594, 37418, 49420, 51940, 69188, 74836, 86485, 93545, 130963, 172970, 187090, 261926, 345940, 374180, 523852, 654815, 916741, 1309630, 1833482, 2619260, 3666964, 4583705, 9167410, 18334820]

約数ペア:

[(1, 18334820), (2, 9167410), (4, 4583705), (5, 3666964), (7, 2619260), (10, 1833482), (14, 1309630), (20, 916741), (28, 654815), (35, 523852), (49, 374180), (53, 345940), (70, 261926), (98, 187090), (106, 172970), (140, 130963), (196, 93545), (212, 86485), (245, 74836), (265, 69188), (353, 51940), (371, 49420), (490, 37418), (530, 34594), (706, 25970), (742, 24710), (980, 18709), (1060, 17297), (1412, 12985), (1484, 12355), (1765, 10388), (1855, 9884), (2471, 7420), (2597, 7060), (3530, 5194), (3710, 4942)]