81189020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9001}}^1$

素因数の和:9062

約数の個数: 48

約数和(自身を含む): 190554336

約数和(自身を除く): 109365316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9001, 9020, 18002, 36004, 45005, 90010, 99011, 180020, 198022, 369041, 396044, 495055, 738082, 990110, 1476164, 1845205, 1980220, 3690410, 4059451, 7380820, 8118902, 16237804, 20297255, 40594510, 81189020]

約数ペア:

[(1, 81189020), (2, 40594510), (4, 20297255), (5, 16237804), (10, 8118902), (11, 7380820), (20, 4059451), (22, 3690410), (41, 1980220), (44, 1845205), (55, 1476164), (82, 990110), (110, 738082), (164, 495055), (205, 396044), (220, 369041), (410, 198022), (451, 180020), (820, 99011), (902, 90010), (1804, 45005), (2255, 36004), (4510, 18002), (9001, 9020)]