820121276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31991}}^1$

素因数の和:32054

約数の個数: 48

約数和(自身を含む): 1693016640

約数和(自身を除く): 872895364

約数列:

[1, 2, 4, 13, 17, 26, 29, 34, 52, 58, 68, 116, 221, 377, 442, 493, 754, 884, 986, 1508, 1972, 6409, 12818, 25636, 31991, 63982, 127964, 415883, 543847, 831766, 927739, 1087694, 1663532, 1855478, 2175388, 3710956, 7070011, 12060607, 14140022, 15771563, 24121214, 28280044, 31543126, 48242428, 63086252, 205030319, 410060638, 820121276]

約数ペア:

[(1, 820121276), (2, 410060638), (4, 205030319), (13, 63086252), (17, 48242428), (26, 31543126), (29, 28280044), (34, 24121214), (52, 15771563), (58, 14140022), (68, 12060607), (116, 7070011), (221, 3710956), (377, 2175388), (442, 1855478), (493, 1663532), (754, 1087694), (884, 927739), (986, 831766), (1508, 543847), (1972, 415883), (6409, 127964), (12818, 63982), (25636, 31991)]