2780128

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:227

約数の個数: 48

約数和(自身を含む): 6075216

約数和(自身を除く): 3295088

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 104, 163, 164, 208, 326, 328, 416, 533, 652, 656, 1066, 1304, 1312, 2119, 2132, 2608, 4238, 4264, 5216, 6683, 8476, 8528, 13366, 16952, 17056, 26732, 33904, 53464, 67808, 86879, 106928, 173758, 213856, 347516, 695032, 1390064, 2780128]

約数ペア:

[(1, 2780128), (2, 1390064), (4, 695032), (8, 347516), (13, 213856), (16, 173758), (26, 106928), (32, 86879), (41, 67808), (52, 53464), (82, 33904), (104, 26732), (163, 17056), (164, 16952), (208, 13366), (326, 8528), (328, 8476), (416, 6683), (533, 5216), (652, 4264), (656, 4238), (1066, 2608), (1304, 2132), (1312, 2119)]