20020940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^2\times {\mathrm{223}}^1$

素因数の和:366

約数の個数: 36

約数和(自身を含む): 42872256

約数和(自身を除く): 22851316

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 223, 268, 335, 446, 670, 892, 1115, 1340, 2230, 4460, 4489, 8978, 14941, 17956, 22445, 29882, 44890, 59764, 74705, 89780, 149410, 298820, 1001047, 2002094, 4004188, 5005235, 10010470, 20020940]

約数ペア:

[(1, 20020940), (2, 10010470), (4, 5005235), (5, 4004188), (10, 2002094), (20, 1001047), (67, 298820), (134, 149410), (223, 89780), (268, 74705), (335, 59764), (446, 44890), (670, 29882), (892, 22445), (1115, 17956), (1340, 14941), (2230, 8978), (4460, 4489)]