81037520

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9467}}^1$

素因数の和:9587

約数の個数: 40

約数和(自身を含む): 190193184

約数和(自身を除く): 109155664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 9467, 18934, 37868, 47335, 75736, 94670, 151472, 189340, 378680, 757360, 1012969, 2025938, 4051876, 5064845, 8103752, 10129690, 16207504, 20259380, 40518760, 81037520]

約数ペア:

[(1, 81037520), (2, 40518760), (4, 20259380), (5, 16207504), (8, 10129690), (10, 8103752), (16, 5064845), (20, 4051876), (40, 2025938), (80, 1012969), (107, 757360), (214, 378680), (428, 189340), (535, 151472), (856, 94670), (1070, 75736), (1712, 47335), (2140, 37868), (4280, 18934), (8560, 9467)]