2820024280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{39989}}^1$

素因数の和:40084

約数の個数: 64

約数和(自身を含む): 6651136800

約数和(自身を除く): 3831112520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 820, 860, 1640, 1720, 1763, 3526, 7052, 8815, 14104, 17630, 35260, 39989, 70520, 79978, 159956, 199945, 319912, 399890, 799780, 1599560, 1639549, 1719527, 3279098, 3439054, 6558196, 6878108, 8197745, 8597635, 13116392, 13756216, 16395490, 17195270, 32790980, 34390540, 65581960, 68781080, 70500607, 141001214, 282002428, 352503035, 564004856, 705006070, 1410012140, 2820024280]

約数ペア:

[(1, 2820024280), (2, 1410012140), (4, 705006070), (5, 564004856), (8, 352503035), (10, 282002428), (20, 141001214), (40, 70500607), (41, 68781080), (43, 65581960), (82, 34390540), (86, 32790980), (164, 17195270), (172, 16395490), (205, 13756216), (215, 13116392), (328, 8597635), (344, 8197745), (410, 6878108), (430, 6558196), (820, 3439054), (860, 3279098), (1640, 1719527), (1720, 1639549), (1763, 1599560), (3526, 799780), (7052, 399890), (8815, 319912), (14104, 199945), (17630, 159956), (35260, 79978), (39989, 70520)]