257284996

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{661}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 482825728

約数和(自身を除く): 225540732

約数列:

[1, 2, 4, 31, 43, 62, 73, 86, 124, 146, 172, 292, 661, 1322, 1333, 2263, 2644, 2666, 3139, 4526, 5332, 6278, 9052, 12556, 20491, 28423, 40982, 48253, 56846, 81964, 96506, 97309, 113692, 193012, 194618, 389236, 881113, 1495843, 1762226, 2074879, 2991686, 3524452, 4149758, 5983372, 8299516, 64321249, 128642498, 257284996]

約数ペア:

[(1, 257284996), (2, 128642498), (4, 64321249), (31, 8299516), (43, 5983372), (62, 4149758), (73, 3524452), (86, 2991686), (124, 2074879), (146, 1762226), (172, 1495843), (292, 881113), (661, 389236), (1322, 194618), (1333, 193012), (2263, 113692), (2644, 97309), (2666, 96506), (3139, 81964), (4526, 56846), (5332, 48253), (6278, 40982), (9052, 28423), (12556, 20491)]