20153965210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{643691}}^1$

素因数の和:643830

約数の個数: 32

約数和(自身を含む): 37818192384

約数和(自身を除く): 17664227174

約数列:

[1, 2, 5, 10, 31, 62, 101, 155, 202, 310, 505, 1010, 3131, 6262, 15655, 31310, 643691, 1287382, 3218455, 6436910, 19954421, 39908842, 65012791, 99772105, 130025582, 199544210, 325063955, 650127910, 2015396521, 4030793042, 10076982605, 20153965210]

約数ペア:

[(1, 20153965210), (2, 10076982605), (5, 4030793042), (10, 2015396521), (31, 650127910), (62, 325063955), (101, 199544210), (155, 130025582), (202, 99772105), (310, 65012791), (505, 39908842), (1010, 19954421), (3131, 6436910), (6262, 3218455), (15655, 1287382), (31310, 643691)]