389601905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{2549}}^1$

素因数の和:2969

約数の個数: 32

約数和(自身を含む): 584582400

約数和(自身を除く): 194980495

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 397, 1985, 2549, 2779, 4367, 12745, 13895, 17843, 21835, 28039, 30569, 89215, 140195, 152845, 196273, 981365, 1011953, 5059765, 7083671, 11131483, 35418355, 55657415, 77920381, 389601905]

約数ペア:

[(1, 389601905), (5, 77920381), (7, 55657415), (11, 35418355), (35, 11131483), (55, 7083671), (77, 5059765), (385, 1011953), (397, 981365), (1985, 196273), (2549, 152845), (2779, 140195), (4367, 89215), (12745, 30569), (13895, 28039), (17843, 21835)]