28415703920

素因数分解:

$2^4\times 5^1\times {\mathrm{2203}}^1\times {\mathrm{161233}}^1$

素因数の和:163449

約数の個数: 40

約数和(自身を含む): 66096910896

約数和(自身を除く): 37681206976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2203, 4406, 8812, 11015, 17624, 22030, 35248, 44060, 88120, 161233, 176240, 322466, 644932, 806165, 1289864, 1612330, 2579728, 3224660, 6449320, 12898640, 355196299, 710392598, 1420785196, 1775981495, 2841570392, 3551962990, 5683140784, 7103925980, 14207851960, 28415703920]

約数ペア:

[(1, 28415703920), (2, 14207851960), (4, 7103925980), (5, 5683140784), (8, 3551962990), (10, 2841570392), (16, 1775981495), (20, 1420785196), (40, 710392598), (80, 355196299), (2203, 12898640), (4406, 6449320), (8812, 3224660), (11015, 2579728), (17624, 1612330), (22030, 1289864), (35248, 806165), (44060, 644932), (88120, 322466), (161233, 176240)]