2645540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 6096384

約数和(自身を除く): 3450844

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 251, 310, 340, 502, 527, 620, 1004, 1054, 1255, 2108, 2510, 2635, 4267, 5020, 5270, 7781, 8534, 10540, 15562, 17068, 21335, 31124, 38905, 42670, 77810, 85340, 132277, 155620, 264554, 529108, 661385, 1322770, 2645540]

約数ペア:

[(1, 2645540), (2, 1322770), (4, 661385), (5, 529108), (10, 264554), (17, 155620), (20, 132277), (31, 85340), (34, 77810), (62, 42670), (68, 38905), (85, 31124), (124, 21335), (155, 17068), (170, 15562), (251, 10540), (310, 8534), (340, 7781), (502, 5270), (527, 5020), (620, 4267), (1004, 2635), (1054, 2510), (1255, 2108)]