28645340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{487}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 64193472

約数和(自身を除く): 35548132

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 173, 340, 346, 487, 692, 865, 974, 1730, 1948, 2435, 2941, 3460, 4870, 5882, 8279, 9740, 11764, 14705, 16558, 29410, 33116, 41395, 58820, 82790, 84251, 165580, 168502, 337004, 421255, 842510, 1432267, 1685020, 2864534, 5729068, 7161335, 14322670, 28645340]

約数ペア:

[(1, 28645340), (2, 14322670), (4, 7161335), (5, 5729068), (10, 2864534), (17, 1685020), (20, 1432267), (34, 842510), (68, 421255), (85, 337004), (170, 168502), (173, 165580), (340, 84251), (346, 82790), (487, 58820), (692, 41395), (865, 33116), (974, 29410), (1730, 16558), (1948, 14705), (2435, 11764), (2941, 9740), (3460, 8279), (4870, 5882)]