31489420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 68620608

約数和(自身を除く): 37131188

約数列:

[1, 2, 4, 5, 10, 20, 53, 61, 106, 122, 212, 244, 265, 305, 487, 530, 610, 974, 1060, 1220, 1948, 2435, 3233, 4870, 6466, 9740, 12932, 16165, 25811, 29707, 32330, 51622, 59414, 64660, 103244, 118828, 129055, 148535, 258110, 297070, 516220, 594140, 1574471, 3148942, 6297884, 7872355, 15744710, 31489420]

約数ペア:

[(1, 31489420), (2, 15744710), (4, 7872355), (5, 6297884), (10, 3148942), (20, 1574471), (53, 594140), (61, 516220), (106, 297070), (122, 258110), (212, 148535), (244, 129055), (265, 118828), (305, 103244), (487, 64660), (530, 59414), (610, 51622), (974, 32330), (1060, 29707), (1220, 25811), (1948, 16165), (2435, 12932), (3233, 9740), (4870, 6466)]