30751880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{941}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 74606400

約数和(自身を除く): 43854520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 941, 1634, 1720, 1882, 3268, 3764, 4085, 4705, 6536, 7528, 8170, 9410, 16340, 17879, 18820, 32680, 35758, 37640, 40463, 71516, 80926, 89395, 143032, 161852, 178790, 202315, 323704, 357580, 404630, 715160, 768797, 809260, 1537594, 1618520, 3075188, 3843985, 6150376, 7687970, 15375940, 30751880]

約数ペア:

[(1, 30751880), (2, 15375940), (4, 7687970), (5, 6150376), (8, 3843985), (10, 3075188), (19, 1618520), (20, 1537594), (38, 809260), (40, 768797), (43, 715160), (76, 404630), (86, 357580), (95, 323704), (152, 202315), (172, 178790), (190, 161852), (215, 143032), (344, 89395), (380, 80926), (430, 71516), (760, 40463), (817, 37640), (860, 35758), (941, 32680), (1634, 18820), (1720, 17879), (1882, 16340), (3268, 9410), (3764, 8170), (4085, 7528), (4705, 6536)]