71221840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{52369}}^1$

素因数の和:52399

約数の個数: 40

約数和(自身を含む): 175334760

約数和(自身を除く): 104112920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 52369, 104738, 209476, 261845, 418952, 523690, 837904, 890273, 1047380, 1780546, 2094760, 3561092, 4189520, 4451365, 7122184, 8902730, 14244368, 17805460, 35610920, 71221840]

約数ペア:

[(1, 71221840), (2, 35610920), (4, 17805460), (5, 14244368), (8, 8902730), (10, 7122184), (16, 4451365), (17, 4189520), (20, 3561092), (34, 2094760), (40, 1780546), (68, 1047380), (80, 890273), (85, 837904), (136, 523690), (170, 418952), (272, 261845), (340, 209476), (680, 104738), (1360, 52369)]