20344940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1201}}^1$

素因数の和:1239

約数の個数: 72

約数和(自身を含む): 53714976

約数和(自身を除く): 33370036

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1201, 1210, 1540, 1694, 2402, 2420, 3388, 4235, 4804, 6005, 8407, 8470, 12010, 13211, 16814, 16940, 24020, 26422, 33628, 42035, 52844, 66055, 84070, 92477, 132110, 145321, 168140, 184954, 264220, 290642, 369908, 462385, 581284, 726605, 924770, 1017247, 1453210, 1849540, 2034494, 2906420, 4068988, 5086235, 10172470, 20344940]

約数ペア:

[(1, 20344940), (2, 10172470), (4, 5086235), (5, 4068988), (7, 2906420), (10, 2034494), (11, 1849540), (14, 1453210), (20, 1017247), (22, 924770), (28, 726605), (35, 581284), (44, 462385), (55, 369908), (70, 290642), (77, 264220), (110, 184954), (121, 168140), (140, 145321), (154, 132110), (220, 92477), (242, 84070), (308, 66055), (385, 52844), (484, 42035), (605, 33628), (770, 26422), (847, 24020), (1201, 16940), (1210, 16814), (1540, 13211), (1694, 12010), (2402, 8470), (2420, 8407), (3388, 6005), (4235, 4804)]