13072520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4603}}^1$

素因数の和:4685

約数の個数: 32

約数和(自身を含む): 29833920

約数和(自身を除く): 16761400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4603, 9206, 18412, 23015, 36824, 46030, 92060, 184120, 326813, 653626, 1307252, 1634065, 2614504, 3268130, 6536260, 13072520]

約数ペア:

[(1, 13072520), (2, 6536260), (4, 3268130), (5, 2614504), (8, 1634065), (10, 1307252), (20, 653626), (40, 326813), (71, 184120), (142, 92060), (284, 46030), (355, 36824), (568, 23015), (710, 18412), (1420, 9206), (2840, 4603)]