2491240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1021}}^1$

素因数の和:1093

約数の個数: 32

約数和(自身を含む): 5702760

約数和(自身を除く): 3211520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1021, 1220, 2042, 2440, 4084, 5105, 8168, 10210, 20420, 40840, 62281, 124562, 249124, 311405, 498248, 622810, 1245620, 2491240]

約数ペア:

[(1, 2491240), (2, 1245620), (4, 622810), (5, 498248), (8, 311405), (10, 249124), (20, 124562), (40, 62281), (61, 40840), (122, 20420), (244, 10210), (305, 8168), (488, 5105), (610, 4084), (1021, 2440), (1220, 2042)]