620764775

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{151}}^1\times {\mathrm{569}}^1$

素因数の和:764

約数の個数: 36

約数和(自身を含む): 824552880

約数和(自身を除く): 203788105

約数列:

[1, 5, 17, 25, 85, 151, 289, 425, 569, 755, 1445, 2567, 2845, 3775, 7225, 9673, 12835, 14225, 43639, 48365, 64175, 85919, 164441, 218195, 241825, 429595, 822205, 1090975, 1460623, 2147975, 4111025, 7303115, 24830591, 36515575, 124152955, 620764775]

約数ペア:

[(1, 620764775), (5, 124152955), (17, 36515575), (25, 24830591), (85, 7303115), (151, 4111025), (289, 2147975), (425, 1460623), (569, 1090975), (755, 822205), (1445, 429595), (2567, 241825), (2845, 218195), (3775, 164441), (7225, 85919), (9673, 64175), (12835, 48365), (14225, 43639)]