77897680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1231}}^1$

素因数の和:1364

約数の個数: 80

約数和(自身を含む): 208986624

約数和(自身を除く): 131088944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 113, 140, 226, 280, 452, 560, 565, 791, 904, 1130, 1231, 1582, 1808, 2260, 2462, 3164, 3955, 4520, 4924, 6155, 6328, 7910, 8617, 9040, 9848, 12310, 12656, 15820, 17234, 19696, 24620, 31640, 34468, 43085, 49240, 63280, 68936, 86170, 98480, 137872, 139103, 172340, 278206, 344680, 556412, 689360, 695515, 973721, 1112824, 1391030, 1947442, 2225648, 2782060, 3894884, 4868605, 5564120, 7789768, 9737210, 11128240, 15579536, 19474420, 38948840, 77897680]

約数ペア:

[(1, 77897680), (2, 38948840), (4, 19474420), (5, 15579536), (7, 11128240), (8, 9737210), (10, 7789768), (14, 5564120), (16, 4868605), (20, 3894884), (28, 2782060), (35, 2225648), (40, 1947442), (56, 1391030), (70, 1112824), (80, 973721), (112, 695515), (113, 689360), (140, 556412), (226, 344680), (280, 278206), (452, 172340), (560, 139103), (565, 137872), (791, 98480), (904, 86170), (1130, 68936), (1231, 63280), (1582, 49240), (1808, 43085), (2260, 34468), (2462, 31640), (3164, 24620), (3955, 19696), (4520, 17234), (4924, 15820), (6155, 12656), (6328, 12310), (7910, 9848), (8617, 9040)]