2651240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{839}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 6048000

約数和(自身を除く): 3396760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 839, 1580, 1678, 3160, 3356, 4195, 6712, 8390, 16780, 33560, 66281, 132562, 265124, 331405, 530248, 662810, 1325620, 2651240]

約数ペア:

[(1, 2651240), (2, 1325620), (4, 662810), (5, 530248), (8, 331405), (10, 265124), (20, 132562), (40, 66281), (79, 33560), (158, 16780), (316, 8390), (395, 6712), (632, 4195), (790, 3356), (839, 3160), (1580, 1678)]