27158420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 58777488

約数和(自身を除く): 31619068

約数列:

[1, 2, 4, 5, 10, 20, 61, 113, 122, 197, 226, 244, 305, 394, 452, 565, 610, 788, 985, 1130, 1220, 1970, 2260, 3940, 6893, 12017, 13786, 22261, 24034, 27572, 34465, 44522, 48068, 60085, 68930, 89044, 111305, 120170, 137860, 222610, 240340, 445220, 1357921, 2715842, 5431684, 6789605, 13579210, 27158420]

約数ペア:

[(1, 27158420), (2, 13579210), (4, 6789605), (5, 5431684), (10, 2715842), (20, 1357921), (61, 445220), (113, 240340), (122, 222610), (197, 137860), (226, 120170), (244, 111305), (305, 89044), (394, 68930), (452, 60085), (565, 48068), (610, 44522), (788, 34465), (985, 27572), (1130, 24034), (1220, 22261), (1970, 13786), (2260, 12017), (3940, 6893)]