64851845

素因数分解:

$5^1\times {\mathrm{19}}^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 32

約数和(自身を含む): 86184960

約数和(自身を除く): 21333115

約数列:

[1, 5, 19, 31, 61, 95, 155, 305, 361, 589, 1159, 1805, 1891, 2945, 5795, 6859, 9455, 11191, 22021, 34295, 35929, 55955, 110105, 179645, 212629, 418399, 682651, 1063145, 2091995, 3413255, 12970369, 64851845]

約数ペア:

[(1, 64851845), (5, 12970369), (19, 3413255), (31, 2091995), (61, 1063145), (95, 682651), (155, 418399), (305, 212629), (361, 179645), (589, 110105), (1159, 55955), (1805, 35929), (1891, 34295), (2945, 22021), (5795, 11191), (6859, 9455)]