20556576

素因数分解:

$2^5\times 3^2\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:674

約数の個数: 72

約数和(自身を含む): 58997484

約数和(自身を除く): 38440908

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 137, 144, 274, 288, 411, 521, 548, 822, 1042, 1096, 1233, 1563, 1644, 2084, 2192, 2466, 3126, 3288, 4168, 4384, 4689, 4932, 6252, 6576, 8336, 9378, 9864, 12504, 13152, 16672, 18756, 19728, 25008, 37512, 39456, 50016, 71377, 75024, 142754, 150048, 214131, 285508, 428262, 571016, 642393, 856524, 1142032, 1284786, 1713048, 2284064, 2569572, 3426096, 5139144, 6852192, 10278288, 20556576]

約数ペア:

[(1, 20556576), (2, 10278288), (3, 6852192), (4, 5139144), (6, 3426096), (8, 2569572), (9, 2284064), (12, 1713048), (16, 1284786), (18, 1142032), (24, 856524), (32, 642393), (36, 571016), (48, 428262), (72, 285508), (96, 214131), (137, 150048), (144, 142754), (274, 75024), (288, 71377), (411, 50016), (521, 39456), (548, 37512), (822, 25008), (1042, 19728), (1096, 18756), (1233, 16672), (1563, 13152), (1644, 12504), (2084, 9864), (2192, 9378), (2466, 8336), (3126, 6576), (3288, 6252), (4168, 4932), (4384, 4689)]