18895585

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 25380864

約数和(自身を除く): 6485279

約数列:

[1, 5, 17, 31, 71, 85, 101, 155, 355, 505, 527, 1207, 1717, 2201, 2635, 3131, 6035, 7171, 8585, 11005, 15655, 35855, 37417, 53227, 121907, 187085, 222301, 266135, 609535, 1111505, 3779117, 18895585]

約数ペア:

[(1, 18895585), (5, 3779117), (17, 1111505), (31, 609535), (71, 266135), (85, 222301), (101, 187085), (155, 121907), (355, 53227), (505, 37417), (527, 35855), (1207, 15655), (1717, 11005), (2201, 8585), (2635, 7171), (3131, 6035)]