20279425

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 26284032

約数和(自身を除く): 6004607

約数列:

[1, 5, 25, 31, 137, 155, 191, 685, 775, 955, 3425, 4247, 4775, 5921, 21235, 26167, 29605, 106175, 130835, 148025, 654175, 811177, 4055885, 20279425]

約数ペア:

[(1, 20279425), (5, 4055885), (25, 811177), (31, 654175), (137, 148025), (155, 130835), (191, 106175), (685, 29605), (775, 26167), (955, 21235), (3425, 5921), (4247, 4775)]