78972138

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{401}}^1\times {\mathrm{521}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 201450240

約数和(自身を除く): 122478102

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 401, 521, 802, 1042, 1203, 1563, 2406, 2807, 3126, 3609, 3647, 4689, 5614, 7218, 7294, 8421, 9378, 10827, 10941, 14067, 16842, 21654, 21882, 25263, 28134, 32823, 50526, 65646, 75789, 98469, 151578, 196938, 208921, 417842, 626763, 1253526, 1462447, 1880289, 2924894, 3760578, 4387341, 5640867, 8774682, 11281734, 13162023, 26324046, 39486069, 78972138]

約数ペア:

[(1, 78972138), (2, 39486069), (3, 26324046), (6, 13162023), (7, 11281734), (9, 8774682), (14, 5640867), (18, 4387341), (21, 3760578), (27, 2924894), (42, 1880289), (54, 1462447), (63, 1253526), (126, 626763), (189, 417842), (378, 208921), (401, 196938), (521, 151578), (802, 98469), (1042, 75789), (1203, 65646), (1563, 50526), (2406, 32823), (2807, 28134), (3126, 25263), (3609, 21882), (3647, 21654), (4689, 16842), (5614, 14067), (7218, 10941), (7294, 10827), (8421, 9378)]