20171642820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6861103}}^1$

素因数の和:6861129

約数の個数: 72

約数和(自身を含む): 65701931904

約数和(自身を除く): 45530289084

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6861103, 13722206, 20583309, 27444412, 34305515, 41166618, 48027721, 68611030, 82333236, 96055442, 102916545, 137222060, 144083163, 192110884, 205833090, 240138605, 288166326, 336194047, 411666180, 480277210, 576332652, 672388094, 720415815, 960554420, 1008582141, 1344776188, 1440831630, 1680970235, 2017164282, 2881663260, 3361940470, 4034328564, 5042910705, 6723880940, 10085821410, 20171642820]

約数ペア:

[(1, 20171642820), (2, 10085821410), (3, 6723880940), (4, 5042910705), (5, 4034328564), (6, 3361940470), (7, 2881663260), (10, 2017164282), (12, 1680970235), (14, 1440831630), (15, 1344776188), (20, 1008582141), (21, 960554420), (28, 720415815), (30, 672388094), (35, 576332652), (42, 480277210), (49, 411666180), (60, 336194047), (70, 288166326), (84, 240138605), (98, 205833090), (105, 192110884), (140, 144083163), (147, 137222060), (196, 102916545), (210, 96055442), (245, 82333236), (294, 68611030), (420, 48027721), (490, 41166618), (588, 34305515), (735, 27444412), (980, 20583309), (1470, 13722206), (2940, 6861103)]