20020492840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6335599}}^1$

素因数の和:6335689

約数の個数: 32

約数和(自身を含む): 45616320000

約数和(自身を除く): 25595827160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6335599, 12671198, 25342396, 31677995, 50684792, 63355990, 126711980, 253423960, 500512321, 1001024642, 2002049284, 2502561605, 4004098568, 5005123210, 10010246420, 20020492840]

約数ペア:

[(1, 20020492840), (2, 10010246420), (4, 5005123210), (5, 4004098568), (8, 2502561605), (10, 2002049284), (20, 1001024642), (40, 500512321), (79, 253423960), (158, 126711980), (316, 63355990), (395, 50684792), (632, 31677995), (790, 25342396), (1580, 12671198), (3160, 6335599)]