678249935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 1005073920

約数和(自身を除く): 326823985

約数列:

[1, 5, 11, 17, 19, 55, 73, 85, 95, 187, 209, 323, 365, 523, 803, 935, 1045, 1241, 1387, 1615, 2615, 3553, 4015, 5753, 6205, 6935, 8891, 9937, 13651, 15257, 17765, 23579, 28765, 38179, 44455, 49685, 68255, 76285, 97801, 109307, 117895, 168929, 190895, 259369, 419969, 489005, 546535, 649043, 725401, 844645, 1296845, 1858219, 2099845, 3245215, 3627005, 7139473, 7979411, 9291095, 12331817, 35697365, 39897055, 61659085, 135649987, 678249935]

約数ペア:

[(1, 678249935), (5, 135649987), (11, 61659085), (17, 39897055), (19, 35697365), (55, 12331817), (73, 9291095), (85, 7979411), (95, 7139473), (187, 3627005), (209, 3245215), (323, 2099845), (365, 1858219), (523, 1296845), (803, 844645), (935, 725401), (1045, 649043), (1241, 546535), (1387, 489005), (1615, 419969), (2615, 259369), (3553, 190895), (4015, 168929), (5753, 117895), (6205, 109307), (6935, 97801), (8891, 76285), (9937, 68255), (13651, 49685), (15257, 44455), (17765, 38179), (23579, 28765)]