30987140

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{2503}}^1$

素因数の和:3131

約数の個数: 24

約数和(自身を含む): 65204160

約数和(自身を除く): 34217020

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 2476, 2503, 3095, 5006, 6190, 10012, 12380, 12515, 25030, 50060, 1549357, 3098714, 6197428, 7746785, 15493570, 30987140]

約数ペア:

[(1, 30987140), (2, 15493570), (4, 7746785), (5, 6197428), (10, 3098714), (20, 1549357), (619, 50060), (1238, 25030), (2476, 12515), (2503, 12380), (3095, 10012), (5006, 6190)]