20343660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{829}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 57170400

約数和(自身を除く): 36826740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 409, 818, 829, 1227, 1636, 1658, 2045, 2454, 2487, 3316, 4090, 4145, 4908, 4974, 6135, 8180, 8290, 9948, 12270, 12435, 16580, 24540, 24870, 49740, 339061, 678122, 1017183, 1356244, 1695305, 2034366, 3390610, 4068732, 5085915, 6781220, 10171830, 20343660]

約数ペア:

[(1, 20343660), (2, 10171830), (3, 6781220), (4, 5085915), (5, 4068732), (6, 3390610), (10, 2034366), (12, 1695305), (15, 1356244), (20, 1017183), (30, 678122), (60, 339061), (409, 49740), (818, 24870), (829, 24540), (1227, 16580), (1636, 12435), (1658, 12270), (2045, 9948), (2454, 8290), (2487, 8180), (3316, 6135), (4090, 4974), (4145, 4908)]