81275064

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{787}}^1$

素因数の和:1140

約数の個数: 64

約数和(自身を含む): 219757440

約数和(自身を除く): 138482376

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 331, 662, 787, 993, 1324, 1574, 1986, 2361, 2648, 3148, 3972, 4303, 4722, 6296, 7944, 8606, 9444, 10231, 12909, 17212, 18888, 20462, 25818, 30693, 34424, 40924, 51636, 61386, 81848, 103272, 122772, 245544, 260497, 520994, 781491, 1041988, 1562982, 2083976, 3125964, 3386461, 6251928, 6772922, 10159383, 13545844, 20318766, 27091688, 40637532, 81275064]

約数ペア:

[(1, 81275064), (2, 40637532), (3, 27091688), (4, 20318766), (6, 13545844), (8, 10159383), (12, 6772922), (13, 6251928), (24, 3386461), (26, 3125964), (39, 2083976), (52, 1562982), (78, 1041988), (104, 781491), (156, 520994), (312, 260497), (331, 245544), (662, 122772), (787, 103272), (993, 81848), (1324, 61386), (1574, 51636), (1986, 40924), (2361, 34424), (2648, 30693), (3148, 25818), (3972, 20462), (4303, 18888), (4722, 17212), (6296, 12909), (7944, 10231), (8606, 9444)]