20012360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16139}}^1$

素因数の和:16181

約数の個数: 32

約数和(自身を含む): 46483200

約数和(自身を除く): 26470840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16139, 32278, 64556, 80695, 129112, 161390, 322780, 500309, 645560, 1000618, 2001236, 2501545, 4002472, 5003090, 10006180, 20012360]

約数ペア:

[(1, 20012360), (2, 10006180), (4, 5003090), (5, 4002472), (8, 2501545), (10, 2001236), (20, 1000618), (31, 645560), (40, 500309), (62, 322780), (124, 161390), (155, 129112), (248, 80695), (310, 64556), (620, 32278), (1240, 16139)]