40002440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12659}}^1$

素因数の和:12749

約数の個数: 32

約数和(自身を含む): 91152000

約数和(自身を除く): 51149560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 12659, 25318, 50636, 63295, 101272, 126590, 253180, 506360, 1000061, 2000122, 4000244, 5000305, 8000488, 10000610, 20001220, 40002440]

約数ペア:

[(1, 40002440), (2, 20001220), (4, 10000610), (5, 8000488), (8, 5000305), (10, 4000244), (20, 2000122), (40, 1000061), (79, 506360), (158, 253180), (316, 126590), (395, 101272), (632, 63295), (790, 50636), (1580, 25318), (3160, 12659)]