320567620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1\times {\mathrm{1613}}^1$

素因数の和:2164

約数の個数: 48

約数和(自身を含む): 710418240

約数和(自身を除く): 389850620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 523, 1046, 1613, 2092, 2615, 3226, 5230, 6452, 8065, 9937, 10460, 16130, 19874, 30647, 32260, 39748, 49685, 61294, 99370, 122588, 153235, 198740, 306470, 612940, 843599, 1687198, 3374396, 4217995, 8435990, 16028381, 16871980, 32056762, 64113524, 80141905, 160283810, 320567620]

約数ペア:

[(1, 320567620), (2, 160283810), (4, 80141905), (5, 64113524), (10, 32056762), (19, 16871980), (20, 16028381), (38, 8435990), (76, 4217995), (95, 3374396), (190, 1687198), (380, 843599), (523, 612940), (1046, 306470), (1613, 198740), (2092, 153235), (2615, 122588), (3226, 99370), (5230, 61294), (6452, 49685), (8065, 39748), (9937, 32260), (10460, 30647), (16130, 19874)]