91990220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{9001}}^1$

素因数の和:9090

約数の個数: 48

約数和(自身を含む): 223825728

約数和(自身を除く): 131835508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 9001, 10220, 18002, 36004, 45005, 63007, 90010, 126014, 180020, 252028, 315035, 630070, 657073, 1260140, 1314146, 2628292, 3285365, 4599511, 6570730, 9199022, 13141460, 18398044, 22997555, 45995110, 91990220]

約数ペア:

[(1, 91990220), (2, 45995110), (4, 22997555), (5, 18398044), (7, 13141460), (10, 9199022), (14, 6570730), (20, 4599511), (28, 3285365), (35, 2628292), (70, 1314146), (73, 1260140), (140, 657073), (146, 630070), (292, 315035), (365, 252028), (511, 180020), (730, 126014), (1022, 90010), (1460, 63007), (2044, 45005), (2555, 36004), (5110, 18002), (9001, 10220)]