20640727264

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{571}}^1\times {\mathrm{38953}}^1$

素因数の和:39563

約数の個数: 48

約数和(自身を含む): 42112390320

約数和(自身を除く): 21471663056

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 571, 928, 1142, 2284, 4568, 9136, 16559, 18272, 33118, 38953, 66236, 77906, 132472, 155812, 264944, 311624, 529888, 623248, 1129637, 1246496, 2259274, 4518548, 9037096, 18074192, 22242163, 36148384, 44484326, 88968652, 177937304, 355874608, 645022727, 711749216, 1290045454, 2580090908, 5160181816, 10320363632, 20640727264]

約数ペア:

[(1, 20640727264), (2, 10320363632), (4, 5160181816), (8, 2580090908), (16, 1290045454), (29, 711749216), (32, 645022727), (58, 355874608), (116, 177937304), (232, 88968652), (464, 44484326), (571, 36148384), (928, 22242163), (1142, 18074192), (2284, 9037096), (4568, 4518548), (9136, 2259274), (16559, 1246496), (18272, 1129637), (33118, 623248), (38953, 529888), (66236, 311624), (77906, 264944), (132472, 155812)]