20805930

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{293}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 35077590

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 263, 270, 293, 526, 586, 789, 879, 1315, 1465, 1578, 1758, 2367, 2630, 2637, 2930, 3945, 4395, 4734, 5274, 7101, 7890, 7911, 8790, 11835, 13185, 14202, 15822, 23670, 26370, 35505, 39555, 71010, 77059, 79110, 154118, 231177, 385295, 462354, 693531, 770590, 1155885, 1387062, 2080593, 2311770, 3467655, 4161186, 6935310, 10402965, 20805930]

約数ペア:

[(1, 20805930), (2, 10402965), (3, 6935310), (5, 4161186), (6, 3467655), (9, 2311770), (10, 2080593), (15, 1387062), (18, 1155885), (27, 770590), (30, 693531), (45, 462354), (54, 385295), (90, 231177), (135, 154118), (263, 79110), (270, 77059), (293, 71010), (526, 39555), (586, 35505), (789, 26370), (879, 23670), (1315, 15822), (1465, 14202), (1578, 13185), (1758, 11835), (2367, 8790), (2630, 7911), (2637, 7890), (2930, 7101), (3945, 5274), (4395, 4734)]