158978980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{60679}}^1$

素因数の和:60819

約数の個数: 24

約数和(自身を含む): 336409920

約数和(自身を除く): 177430940

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 60679, 121358, 242716, 303395, 606790, 1213580, 7948949, 15897898, 31795796, 39744745, 79489490, 158978980]

約数ペア:

[(1, 158978980), (2, 79489490), (4, 39744745), (5, 31795796), (10, 15897898), (20, 7948949), (131, 1213580), (262, 606790), (524, 303395), (655, 242716), (1310, 121358), (2620, 60679)]