1641040

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:367

約数の個数: 40

約数和(自身を含む): 3881448

約数和(自身を除く): 2240408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 281, 292, 365, 562, 584, 730, 1124, 1168, 1405, 1460, 2248, 2810, 2920, 4496, 5620, 5840, 11240, 20513, 22480, 41026, 82052, 102565, 164104, 205130, 328208, 410260, 820520, 1641040]

約数ペア:

[(1, 1641040), (2, 820520), (4, 410260), (5, 328208), (8, 205130), (10, 164104), (16, 102565), (20, 82052), (40, 41026), (73, 22480), (80, 20513), (146, 11240), (281, 5840), (292, 5620), (365, 4496), (562, 2920), (584, 2810), (730, 2248), (1124, 1460), (1168, 1405)]