128464960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30881}}^1$

素因数の和:30911

約数の個数: 56

約数和(自身を含む): 329449176

約数和(自身を除く): 200984216

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 30881, 61762, 123524, 154405, 247048, 308810, 401453, 494096, 617620, 802906, 988192, 1235240, 1605812, 1976384, 2007265, 2470480, 3211624, 4014530, 4940960, 6423248, 8029060, 9881920, 12846496, 16058120, 25692992, 32116240, 64232480, 128464960]

約数ペア:

[(1, 128464960), (2, 64232480), (4, 32116240), (5, 25692992), (8, 16058120), (10, 12846496), (13, 9881920), (16, 8029060), (20, 6423248), (26, 4940960), (32, 4014530), (40, 3211624), (52, 2470480), (64, 2007265), (65, 1976384), (80, 1605812), (104, 1235240), (130, 988192), (160, 802906), (208, 617620), (260, 494096), (320, 401453), (416, 308810), (520, 247048), (832, 154405), (1040, 123524), (2080, 61762), (4160, 30881)]