20916010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{619}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 39283200

約数和(自身を除く): 18367190

約数列:

[1, 2, 5, 10, 31, 62, 109, 155, 218, 310, 545, 619, 1090, 1238, 3095, 3379, 6190, 6758, 16895, 19189, 33790, 38378, 67471, 95945, 134942, 191890, 337355, 674710, 2091601, 4183202, 10458005, 20916010]

約数ペア:

[(1, 20916010), (2, 10458005), (5, 4183202), (10, 2091601), (31, 674710), (62, 337355), (109, 191890), (155, 134942), (218, 95945), (310, 67471), (545, 38378), (619, 33790), (1090, 19189), (1238, 16895), (3095, 6758), (3379, 6190)]