99998320

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{17123}}^1$

素因数の和:17209

約数の個数: 40

約数和(自身を含む): 235694736

約数和(自身を除く): 135696416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 17123, 34246, 68492, 85615, 136984, 171230, 273968, 342460, 684920, 1249979, 1369840, 2499958, 4999916, 6249895, 9999832, 12499790, 19999664, 24999580, 49999160, 99998320]

約数ペア:

[(1, 99998320), (2, 49999160), (4, 24999580), (5, 19999664), (8, 12499790), (10, 9999832), (16, 6249895), (20, 4999916), (40, 2499958), (73, 1369840), (80, 1249979), (146, 684920), (292, 342460), (365, 273968), (584, 171230), (730, 136984), (1168, 85615), (1460, 68492), (2920, 34246), (5840, 17123)]