391499990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{11119}}^1$

素因数の和:11636

約数の個数: 32

約数和(自身を含む): 807045120

約数和(自身を除く): 415545130

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 503, 1006, 2515, 3521, 5030, 7042, 11119, 17605, 22238, 35210, 55595, 77833, 111190, 155666, 389165, 778330, 5592857, 11185714, 27964285, 39149999, 55928570, 78299998, 195749995, 391499990]

約数ペア:

[(1, 391499990), (2, 195749995), (5, 78299998), (7, 55928570), (10, 39149999), (14, 27964285), (35, 11185714), (70, 5592857), (503, 778330), (1006, 389165), (2515, 155666), (3521, 111190), (5030, 77833), (7042, 55595), (11119, 35210), (17605, 22238)]