20649210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1597}}^1$

素因数の和:2038

約数の個数: 32

約数和(自身を含む): 49704192

約数和(自身を除く): 29054982

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 431, 862, 1293, 1597, 2155, 2586, 3194, 4310, 4791, 6465, 7985, 9582, 12930, 15970, 23955, 47910, 688307, 1376614, 2064921, 3441535, 4129842, 6883070, 10324605, 20649210]

約数ペア:

[(1, 20649210), (2, 10324605), (3, 6883070), (5, 4129842), (6, 3441535), (10, 2064921), (15, 1376614), (30, 688307), (431, 47910), (862, 23955), (1293, 15970), (1597, 12930), (2155, 9582), (2586, 7985), (3194, 6465), (4310, 4791)]