20246571820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1217}}^1\times {\mathrm{26833}}^1$

素因数の和:28090

約数の個数: 48

約数和(自身を含む): 43927043328

約数和(自身を除く): 23680471508

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1217, 2434, 4868, 6085, 12170, 24340, 26833, 37727, 53666, 75454, 107332, 134165, 150908, 188635, 268330, 377270, 536660, 754540, 831823, 1663646, 3327292, 4159115, 8318230, 16636460, 32655761, 65311522, 130623044, 163278805, 326557610, 653115220, 1012328591, 2024657182, 4049314364, 5061642955, 10123285910, 20246571820]

約数ペア:

[(1, 20246571820), (2, 10123285910), (4, 5061642955), (5, 4049314364), (10, 2024657182), (20, 1012328591), (31, 653115220), (62, 326557610), (124, 163278805), (155, 130623044), (310, 65311522), (620, 32655761), (1217, 16636460), (2434, 8318230), (4868, 4159115), (6085, 3327292), (12170, 1663646), (24340, 831823), (26833, 754540), (37727, 536660), (53666, 377270), (75454, 268330), (107332, 188635), (134165, 150908)]