81911310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1511}}^1$

素因数の和:1673

約数の個数: 64

約数和(自身を含む): 213373440

約数和(自身を除く): 131462130

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 139, 195, 278, 390, 417, 695, 834, 1390, 1511, 1807, 2085, 3022, 3614, 4170, 4533, 5421, 7555, 9035, 9066, 10842, 15110, 18070, 19643, 22665, 27105, 39286, 45330, 54210, 58929, 98215, 117858, 196430, 210029, 294645, 420058, 589290, 630087, 1050145, 1260174, 2100290, 2730377, 3150435, 5460754, 6300870, 8191131, 13651885, 16382262, 27303770, 40955655, 81911310]

約数ペア:

[(1, 81911310), (2, 40955655), (3, 27303770), (5, 16382262), (6, 13651885), (10, 8191131), (13, 6300870), (15, 5460754), (26, 3150435), (30, 2730377), (39, 2100290), (65, 1260174), (78, 1050145), (130, 630087), (139, 589290), (195, 420058), (278, 294645), (390, 210029), (417, 196430), (695, 117858), (834, 98215), (1390, 58929), (1511, 54210), (1807, 45330), (2085, 39286), (3022, 27105), (3614, 22665), (4170, 19643), (4533, 18070), (5421, 15110), (7555, 10842), (9035, 9066)]