221422940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{1109}}^1$

素因数の和:1334

約数の個数: 48

約数和(自身を含む): 475524000

約数和(自身を除く): 254101060

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 149, 268, 298, 335, 596, 670, 745, 1109, 1340, 1490, 2218, 2980, 4436, 5545, 9983, 11090, 19966, 22180, 39932, 49915, 74303, 99830, 148606, 165241, 199660, 297212, 330482, 371515, 660964, 743030, 826205, 1486060, 1652410, 3304820, 11071147, 22142294, 44284588, 55355735, 110711470, 221422940]

約数ペア:

[(1, 221422940), (2, 110711470), (4, 55355735), (5, 44284588), (10, 22142294), (20, 11071147), (67, 3304820), (134, 1652410), (149, 1486060), (268, 826205), (298, 743030), (335, 660964), (596, 371515), (670, 330482), (745, 297212), (1109, 199660), (1340, 165241), (1490, 148606), (2218, 99830), (2980, 74303), (4436, 49915), (5545, 39932), (9983, 22180), (11090, 19966)]