78305721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 116981760

約数和(自身を除く): 38676039

約数列:

[1, 3, 13, 31, 39, 93, 239, 271, 403, 717, 813, 1209, 3107, 3523, 7409, 8401, 9321, 10569, 22227, 25203, 64769, 96317, 109213, 194307, 288951, 327639, 841997, 2007839, 2525991, 6023517, 26101907, 78305721]

約数ペア:

[(1, 78305721), (3, 26101907), (13, 6023517), (31, 2525991), (39, 2007839), (93, 841997), (239, 327639), (271, 288951), (403, 194307), (717, 109213), (813, 96317), (1209, 64769), (3107, 25203), (3523, 22227), (7409, 10569), (8401, 9321)]