189920456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 398908800

約数和(自身を除く): 208988344

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 113, 142, 226, 269, 284, 452, 538, 568, 781, 904, 1076, 1243, 1562, 2152, 2486, 2959, 3124, 4972, 5918, 6248, 8023, 9944, 11836, 16046, 19099, 23672, 30397, 32092, 38198, 60794, 64184, 76396, 88253, 121588, 152792, 176506, 210089, 243176, 334367, 353012, 420178, 668734, 706024, 840356, 1337468, 1680712, 2158187, 2674936, 4316374, 8632748, 17265496, 23740057, 47480114, 94960228, 189920456]

約数ペア:

[(1, 189920456), (2, 94960228), (4, 47480114), (8, 23740057), (11, 17265496), (22, 8632748), (44, 4316374), (71, 2674936), (88, 2158187), (113, 1680712), (142, 1337468), (226, 840356), (269, 706024), (284, 668734), (452, 420178), (538, 353012), (568, 334367), (781, 243176), (904, 210089), (1076, 176506), (1243, 152792), (1562, 121588), (2152, 88253), (2486, 76396), (2959, 64184), (3124, 60794), (4972, 38198), (5918, 32092), (6248, 30397), (8023, 23672), (9944, 19099), (11836, 16046)]