20799710

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{523}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 38822112

約数和(自身を除く): 18022402

約数列:

[1, 2, 5, 10, 41, 82, 97, 194, 205, 410, 485, 523, 970, 1046, 2615, 3977, 5230, 7954, 19885, 21443, 39770, 42886, 50731, 101462, 107215, 214430, 253655, 507310, 2079971, 4159942, 10399855, 20799710]

約数ペア:

[(1, 20799710), (2, 10399855), (5, 4159942), (10, 2079971), (41, 507310), (82, 253655), (97, 214430), (194, 107215), (205, 101462), (410, 50731), (485, 42886), (523, 39770), (970, 21443), (1046, 19885), (2615, 7954), (3977, 5230)]