2662540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 6096384

約数和(自身を除く): 3433844

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 191, 205, 340, 382, 410, 697, 764, 820, 955, 1394, 1910, 2788, 3247, 3485, 3820, 6494, 6970, 7831, 12988, 13940, 15662, 16235, 31324, 32470, 39155, 64940, 78310, 133127, 156620, 266254, 532508, 665635, 1331270, 2662540]

約数ペア:

[(1, 2662540), (2, 1331270), (4, 665635), (5, 532508), (10, 266254), (17, 156620), (20, 133127), (34, 78310), (41, 64940), (68, 39155), (82, 32470), (85, 31324), (164, 16235), (170, 15662), (191, 13940), (205, 12988), (340, 7831), (382, 6970), (410, 6494), (697, 3820), (764, 3485), (820, 3247), (955, 2788), (1394, 1910)]