1989425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 2714112

約数和(自身を除く): 724687

約数列:

[1, 5, 17, 25, 31, 85, 151, 155, 425, 527, 755, 775, 2567, 2635, 3775, 4681, 12835, 13175, 23405, 64175, 79577, 117025, 397885, 1989425]

約数ペア:

[(1, 1989425), (5, 397885), (17, 117025), (25, 79577), (31, 64175), (85, 23405), (151, 13175), (155, 12835), (425, 4681), (527, 3775), (755, 2635), (775, 2567)]