22172440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17881}}^1$

素因数の和:17923

約数の個数: 32

約数和(自身を含む): 51500160

約数和(自身を除く): 29327720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17881, 35762, 71524, 89405, 143048, 178810, 357620, 554311, 715240, 1108622, 2217244, 2771555, 4434488, 5543110, 11086220, 22172440]

約数ペア:

[(1, 22172440), (2, 11086220), (4, 5543110), (5, 4434488), (8, 2771555), (10, 2217244), (20, 1108622), (31, 715240), (40, 554311), (62, 357620), (124, 178810), (155, 143048), (248, 89405), (310, 71524), (620, 35762), (1240, 17881)]