290778826

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1319}}^1$

素因数の和:1534

約数の個数: 32

約数和(自身を含む): 481219200

約数和(自身を除く): 190440374

約数列:

[1, 2, 13, 26, 61, 122, 139, 278, 793, 1319, 1586, 1807, 2638, 3614, 8479, 16958, 17147, 34294, 80459, 110227, 160918, 183341, 220454, 366682, 1045967, 2091934, 2383433, 4766866, 11183801, 22367602, 145389413, 290778826]

約数ペア:

[(1, 290778826), (2, 145389413), (13, 22367602), (26, 11183801), (61, 4766866), (122, 2383433), (139, 2091934), (278, 1045967), (793, 366682), (1319, 220454), (1586, 183341), (1807, 160918), (2638, 110227), (3614, 80459), (8479, 34294), (16958, 17147)]