291295278

素因数分解:

$2^1\times 3^8\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:386

約数の個数: 72

約数和(自身を含む): 666038880

約数和(自身を除く): 374743602

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 158, 162, 237, 243, 281, 474, 486, 562, 711, 729, 843, 1422, 1458, 1686, 2133, 2187, 2529, 4266, 4374, 5058, 6399, 6561, 7587, 12798, 13122, 15174, 19197, 22199, 22761, 38394, 44398, 45522, 57591, 66597, 68283, 115182, 133194, 136566, 172773, 199791, 204849, 345546, 399582, 409698, 518319, 599373, 614547, 1036638, 1198746, 1229094, 1798119, 1843641, 3596238, 3687282, 5394357, 10788714, 16183071, 32366142, 48549213, 97098426, 145647639, 291295278]

約数ペア:

[(1, 291295278), (2, 145647639), (3, 97098426), (6, 48549213), (9, 32366142), (18, 16183071), (27, 10788714), (54, 5394357), (79, 3687282), (81, 3596238), (158, 1843641), (162, 1798119), (237, 1229094), (243, 1198746), (281, 1036638), (474, 614547), (486, 599373), (562, 518319), (711, 409698), (729, 399582), (843, 345546), (1422, 204849), (1458, 199791), (1686, 172773), (2133, 136566), (2187, 133194), (2529, 115182), (4266, 68283), (4374, 66597), (5058, 57591), (6399, 45522), (6561, 44398), (7587, 38394), (12798, 22761), (13122, 22199), (15174, 19197)]