891440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1013}}^1$

素因数の和:1037

約数の個数: 40

約数和(自身を含む): 2263248

約数和(自身を除く): 1371808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1013, 2026, 4052, 5065, 8104, 10130, 11143, 16208, 20260, 22286, 40520, 44572, 55715, 81040, 89144, 111430, 178288, 222860, 445720, 891440]

約数ペア:

[(1, 891440), (2, 445720), (4, 222860), (5, 178288), (8, 111430), (10, 89144), (11, 81040), (16, 55715), (20, 44572), (22, 40520), (40, 22286), (44, 20260), (55, 16208), (80, 11143), (88, 10130), (110, 8104), (176, 5065), (220, 4052), (440, 2026), (880, 1013)]