198545680

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{22769}}^1$

素因数の和:22891

約数の個数: 40

約数和(自身を含む): 465874200

約数和(自身を除く): 267328520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 22769, 45538, 91076, 113845, 182152, 227690, 364304, 455380, 910760, 1821520, 2481821, 4963642, 9927284, 12409105, 19854568, 24818210, 39709136, 49636420, 99272840, 198545680]

約数ペア:

[(1, 198545680), (2, 99272840), (4, 49636420), (5, 39709136), (8, 24818210), (10, 19854568), (16, 12409105), (20, 9927284), (40, 4963642), (80, 2481821), (109, 1821520), (218, 910760), (436, 455380), (545, 364304), (872, 227690), (1090, 182152), (1744, 113845), (2180, 91076), (4360, 45538), (8720, 22769)]