20172941560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{123397}}^1$

素因数の和:123536

約数の個数: 64

約数和(自身を含む): 46822137120

約数和(自身を除く): 26649195560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 67, 122, 134, 244, 268, 305, 335, 488, 536, 610, 670, 1220, 1340, 2440, 2680, 4087, 8174, 16348, 20435, 32696, 40870, 81740, 123397, 163480, 246794, 493588, 616985, 987176, 1233970, 2467940, 4935880, 7527217, 8267599, 15054434, 16535198, 30108868, 33070396, 37636085, 41337995, 60217736, 66140792, 75272170, 82675990, 150544340, 165351980, 301088680, 330703960, 504323539, 1008647078, 2017294156, 2521617695, 4034588312, 5043235390, 10086470780, 20172941560]

約数ペア:

[(1, 20172941560), (2, 10086470780), (4, 5043235390), (5, 4034588312), (8, 2521617695), (10, 2017294156), (20, 1008647078), (40, 504323539), (61, 330703960), (67, 301088680), (122, 165351980), (134, 150544340), (244, 82675990), (268, 75272170), (305, 66140792), (335, 60217736), (488, 41337995), (536, 37636085), (610, 33070396), (670, 30108868), (1220, 16535198), (1340, 15054434), (2440, 8267599), (2680, 7527217), (4087, 4935880), (8174, 2467940), (16348, 1233970), (20435, 987176), (32696, 616985), (40870, 493588), (81740, 246794), (123397, 163480)]