80749340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19889}}^1$

素因数の和:19934

約数の個数: 48

約数和(自身を含む): 200491200

約数和(自身を除く): 119741860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 19889, 39778, 79556, 99445, 139223, 198890, 278446, 397780, 556892, 576781, 696115, 1153562, 1392230, 2307124, 2784460, 2883905, 4037467, 5767810, 8074934, 11535620, 16149868, 20187335, 40374670, 80749340]

約数ペア:

[(1, 80749340), (2, 40374670), (4, 20187335), (5, 16149868), (7, 11535620), (10, 8074934), (14, 5767810), (20, 4037467), (28, 2883905), (29, 2784460), (35, 2307124), (58, 1392230), (70, 1153562), (116, 696115), (140, 576781), (145, 556892), (203, 397780), (290, 278446), (406, 198890), (580, 139223), (812, 99445), (1015, 79556), (2030, 39778), (4060, 19889)]