20792994340

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{355679}}^1$

素因数の和:355804

約数の個数: 48

約数和(自身を含む): 45413222400

約数和(自身を除く): 24620228060

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 79, 148, 158, 185, 316, 370, 395, 740, 790, 1580, 2923, 5846, 11692, 14615, 29230, 58460, 355679, 711358, 1422716, 1778395, 3556790, 7113580, 13160123, 26320246, 28098641, 52640492, 56197282, 65800615, 112394564, 131601230, 140493205, 263202460, 280986410, 561972820, 1039649717, 2079299434, 4158598868, 5198248585, 10396497170, 20792994340]

約数ペア:

[(1, 20792994340), (2, 10396497170), (4, 5198248585), (5, 4158598868), (10, 2079299434), (20, 1039649717), (37, 561972820), (74, 280986410), (79, 263202460), (148, 140493205), (158, 131601230), (185, 112394564), (316, 65800615), (370, 56197282), (395, 52640492), (740, 28098641), (790, 26320246), (1580, 13160123), (2923, 7113580), (5846, 3556790), (11692, 1778395), (14615, 1422716), (29230, 711358), (58460, 355679)]