840542115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{19963}}^1$

素因数の和:20379

約数の個数: 32

約数和(自身を含む): 1540901376

約数和(自身を除く): 700359261

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 401, 1203, 2005, 2807, 6015, 8421, 14035, 19963, 42105, 59889, 99815, 139741, 299445, 419223, 698705, 2096115, 8005163, 24015489, 40025815, 56036141, 120077445, 168108423, 280180705, 840542115]

約数ペア:

[(1, 840542115), (3, 280180705), (5, 168108423), (7, 120077445), (15, 56036141), (21, 40025815), (35, 24015489), (105, 8005163), (401, 2096115), (1203, 698705), (2005, 419223), (2807, 299445), (6015, 139741), (8421, 99815), (14035, 59889), (19963, 42105)]