20216770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{433}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 24780350

約数列:

[1, 2, 5, 7, 10, 14, 23, 29, 35, 46, 58, 70, 115, 145, 161, 203, 230, 290, 322, 406, 433, 667, 805, 866, 1015, 1334, 1610, 2030, 2165, 3031, 3335, 4330, 4669, 6062, 6670, 9338, 9959, 12557, 15155, 19918, 23345, 25114, 30310, 46690, 49795, 62785, 69713, 87899, 99590, 125570, 139426, 175798, 288811, 348565, 439495, 577622, 697130, 878990, 1444055, 2021677, 2888110, 4043354, 10108385, 20216770]

約数ペア:

[(1, 20216770), (2, 10108385), (5, 4043354), (7, 2888110), (10, 2021677), (14, 1444055), (23, 878990), (29, 697130), (35, 577622), (46, 439495), (58, 348565), (70, 288811), (115, 175798), (145, 139426), (161, 125570), (203, 99590), (230, 87899), (290, 69713), (322, 62785), (406, 49795), (433, 46690), (667, 30310), (805, 25114), (866, 23345), (1015, 19918), (1334, 15155), (1610, 12557), (2030, 9959), (2165, 9338), (3031, 6670), (3335, 6062), (4330, 4669)]