18401215

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 27907200

約数和(自身を除く): 9505985

約数列:

[1, 5, 7, 19, 35, 49, 59, 67, 95, 133, 245, 295, 335, 413, 469, 665, 931, 1121, 1273, 2065, 2345, 2891, 3283, 3953, 4655, 5605, 6365, 7847, 8911, 14455, 16415, 19765, 27671, 39235, 44555, 54929, 62377, 75107, 138355, 193697, 274645, 311885, 375535, 525749, 968485, 2628745, 3680243, 18401215]

約数ペア:

[(1, 18401215), (5, 3680243), (7, 2628745), (19, 968485), (35, 525749), (49, 375535), (59, 311885), (67, 274645), (95, 193697), (133, 138355), (245, 75107), (295, 62377), (335, 54929), (413, 44555), (469, 39235), (665, 27671), (931, 19765), (1121, 16415), (1273, 14455), (2065, 8911), (2345, 7847), (2891, 6365), (3283, 5605), (3953, 4655)]