20054940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4231}}^1$

素因数の和:4322

約数の個数: 48

約数和(自身を含む): 56878080

約数和(自身を除く): 36823140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4231, 4740, 8462, 12693, 16924, 21155, 25386, 42310, 50772, 63465, 84620, 126930, 253860, 334249, 668498, 1002747, 1336996, 1671245, 2005494, 3342490, 4010988, 5013735, 6684980, 10027470, 20054940]

約数ペア:

[(1, 20054940), (2, 10027470), (3, 6684980), (4, 5013735), (5, 4010988), (6, 3342490), (10, 2005494), (12, 1671245), (15, 1336996), (20, 1002747), (30, 668498), (60, 334249), (79, 253860), (158, 126930), (237, 84620), (316, 63465), (395, 50772), (474, 42310), (790, 25386), (948, 21155), (1185, 16924), (1580, 12693), (2370, 8462), (4231, 4740)]