20199709970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{15031}}^1$

素因数の和:15711

約数の個数: 64

約数和(自身を含む): 41820226560

約数和(自身を除く): 21620516590

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 643, 1045, 1286, 2090, 3215, 6430, 7073, 12217, 14146, 15031, 24434, 30062, 35365, 61085, 70730, 75155, 122170, 134387, 150310, 165341, 268774, 285589, 330682, 571178, 671935, 826705, 1343870, 1427945, 1653410, 2855890, 3141479, 6282958, 9664933, 15707395, 19329866, 31414790, 48324665, 96649330, 106314263, 183633727, 212628526, 367267454, 531571315, 918168635, 1063142630, 1836337270, 2019970997, 4039941994, 10099854985, 20199709970]

約数ペア:

[(1, 20199709970), (2, 10099854985), (5, 4039941994), (10, 2019970997), (11, 1836337270), (19, 1063142630), (22, 918168635), (38, 531571315), (55, 367267454), (95, 212628526), (110, 183633727), (190, 106314263), (209, 96649330), (418, 48324665), (643, 31414790), (1045, 19329866), (1286, 15707395), (2090, 9664933), (3215, 6282958), (6430, 3141479), (7073, 2855890), (12217, 1653410), (14146, 1427945), (15031, 1343870), (24434, 826705), (30062, 671935), (35365, 571178), (61085, 330682), (70730, 285589), (75155, 268774), (122170, 165341), (134387, 150310)]