397918980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{245629}}^1$

素因数の和:245650

約数の個数: 60

約数和(自身を含む): 1248291660

約数和(自身を除く): 850372680

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 245629, 491258, 736887, 982516, 1228145, 1473774, 2210661, 2456290, 2947548, 3684435, 4421322, 4912580, 6631983, 7368870, 8842644, 11053305, 13263966, 14737740, 19895949, 22106610, 26527932, 33159915, 39791898, 44213220, 66319830, 79583796, 99479745, 132639660, 198959490, 397918980]

約数ペア:

[(1, 397918980), (2, 198959490), (3, 132639660), (4, 99479745), (5, 79583796), (6, 66319830), (9, 44213220), (10, 39791898), (12, 33159915), (15, 26527932), (18, 22106610), (20, 19895949), (27, 14737740), (30, 13263966), (36, 11053305), (45, 8842644), (54, 7368870), (60, 6631983), (81, 4912580), (90, 4421322), (108, 3684435), (135, 2947548), (162, 2456290), (180, 2210661), (270, 1473774), (324, 1228145), (405, 982516), (540, 736887), (810, 491258), (1620, 245629)]