200990980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{324179}}^1$

素因数の和:324219

約数の個数: 24

約数和(自身を含む): 435697920

約数和(自身を除く): 234706940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 324179, 648358, 1296716, 1620895, 3241790, 6483580, 10049549, 20099098, 40198196, 50247745, 100495490, 200990980]

約数ペア:

[(1, 200990980), (2, 100495490), (4, 50247745), (5, 40198196), (10, 20099098), (20, 10049549), (31, 6483580), (62, 3241790), (124, 1620895), (155, 1296716), (310, 648358), (620, 324179)]