31541360

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:282

約数の個数: 80

約数和(自身を含む): 76896864

約数和(自身を除く): 45355504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 53, 80, 86, 106, 172, 173, 212, 215, 265, 344, 346, 424, 430, 530, 688, 692, 848, 860, 865, 1060, 1384, 1720, 1730, 2120, 2279, 2768, 3440, 3460, 4240, 4558, 6920, 7439, 9116, 9169, 11395, 13840, 14878, 18232, 18338, 22790, 29756, 36464, 36676, 37195, 45580, 45845, 59512, 73352, 74390, 91160, 91690, 119024, 146704, 148780, 182320, 183380, 297560, 366760, 394267, 595120, 733520, 788534, 1577068, 1971335, 3154136, 3942670, 6308272, 7885340, 15770680, 31541360]

約数ペア:

[(1, 31541360), (2, 15770680), (4, 7885340), (5, 6308272), (8, 3942670), (10, 3154136), (16, 1971335), (20, 1577068), (40, 788534), (43, 733520), (53, 595120), (80, 394267), (86, 366760), (106, 297560), (172, 183380), (173, 182320), (212, 148780), (215, 146704), (265, 119024), (344, 91690), (346, 91160), (424, 74390), (430, 73352), (530, 59512), (688, 45845), (692, 45580), (848, 37195), (860, 36676), (865, 36464), (1060, 29756), (1384, 22790), (1720, 18338), (1730, 18232), (2120, 14878), (2279, 13840), (2768, 11395), (3440, 9169), (3460, 9116), (4240, 7439), (4558, 6920)]