400554

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2$

素因数の和:60

約数の個数: 72

約数和(自身を含む): 1149408

約数和(自身を除く): 748854

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 17, 18, 21, 22, 33, 34, 42, 51, 63, 66, 77, 99, 102, 119, 126, 153, 154, 187, 198, 231, 238, 289, 306, 357, 374, 462, 561, 578, 693, 714, 867, 1071, 1122, 1309, 1386, 1683, 1734, 2023, 2142, 2601, 2618, 3179, 3366, 3927, 4046, 5202, 6069, 6358, 7854, 9537, 11781, 12138, 18207, 19074, 22253, 23562, 28611, 36414, 44506, 57222, 66759, 133518, 200277, 400554]

約数ペア:

[(1, 400554), (2, 200277), (3, 133518), (6, 66759), (7, 57222), (9, 44506), (11, 36414), (14, 28611), (17, 23562), (18, 22253), (21, 19074), (22, 18207), (33, 12138), (34, 11781), (42, 9537), (51, 7854), (63, 6358), (66, 6069), (77, 5202), (99, 4046), (102, 3927), (119, 3366), (126, 3179), (153, 2618), (154, 2601), (187, 2142), (198, 2023), (231, 1734), (238, 1683), (289, 1386), (306, 1309), (357, 1122), (374, 1071), (462, 867), (561, 714), (578, 693)]