388263340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{26557}}^1$

素因数の和:26626

約数の個数: 48

約数和(自身を含む): 883425312

約数和(自身を除く): 495161972

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1462, 2924, 3655, 7310, 14620, 26557, 53114, 106228, 132785, 265570, 451469, 531140, 902938, 1141951, 1805876, 2257345, 2283902, 4514690, 4567804, 5709755, 9029380, 11419510, 19413167, 22839020, 38826334, 77652668, 97065835, 194131670, 388263340]

約数ペア:

[(1, 388263340), (2, 194131670), (4, 97065835), (5, 77652668), (10, 38826334), (17, 22839020), (20, 19413167), (34, 11419510), (43, 9029380), (68, 5709755), (85, 4567804), (86, 4514690), (170, 2283902), (172, 2257345), (215, 1805876), (340, 1141951), (430, 902938), (731, 531140), (860, 451469), (1462, 265570), (2924, 132785), (3655, 106228), (7310, 53114), (14620, 26557)]