18702110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^2$

素因数の和:209

約数の個数: 48

約数和(自身を含む): 39758688

約数和(自身を除く): 21056578

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 71, 106, 142, 265, 355, 371, 497, 530, 710, 742, 994, 1855, 2485, 3710, 3763, 4970, 5041, 7526, 10082, 18815, 25205, 26341, 35287, 37630, 50410, 52682, 70574, 131705, 176435, 263410, 267173, 352870, 534346, 1335865, 1870211, 2671730, 3740422, 9351055, 18702110]

約数ペア:

[(1, 18702110), (2, 9351055), (5, 3740422), (7, 2671730), (10, 1870211), (14, 1335865), (35, 534346), (53, 352870), (70, 267173), (71, 263410), (106, 176435), (142, 131705), (265, 70574), (355, 52682), (371, 50410), (497, 37630), (530, 35287), (710, 26341), (742, 25205), (994, 18815), (1855, 10082), (2485, 7526), (3710, 5041), (3763, 4970)]