30666020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19913}}^1$

素因数の和:19940

約数の個数: 48

約数和(自身を含む): 80293248

約数和(自身を除く): 49627228

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 19913, 39826, 79652, 99565, 139391, 199130, 219043, 278782, 398260, 438086, 557564, 696955, 876172, 1095215, 1393910, 1533301, 2190430, 2787820, 3066602, 4380860, 6133204, 7666505, 15333010, 30666020]

約数ペア:

[(1, 30666020), (2, 15333010), (4, 7666505), (5, 6133204), (7, 4380860), (10, 3066602), (11, 2787820), (14, 2190430), (20, 1533301), (22, 1393910), (28, 1095215), (35, 876172), (44, 696955), (55, 557564), (70, 438086), (77, 398260), (110, 278782), (140, 219043), (154, 199130), (220, 139391), (308, 99565), (385, 79652), (770, 39826), (1540, 19913)]