20574812

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 39184992

約数和(自身を除く): 18610180

約数列:

[1, 2, 4, 37, 43, 53, 61, 74, 86, 106, 122, 148, 172, 212, 244, 1591, 1961, 2257, 2279, 2623, 3182, 3233, 3922, 4514, 4558, 5246, 6364, 6466, 7844, 9028, 9116, 10492, 12932, 84323, 97051, 119621, 139019, 168646, 194102, 239242, 278038, 337292, 388204, 478484, 556076, 5143703, 10287406, 20574812]

約数ペア:

[(1, 20574812), (2, 10287406), (4, 5143703), (37, 556076), (43, 478484), (53, 388204), (61, 337292), (74, 278038), (86, 239242), (106, 194102), (122, 168646), (148, 139019), (172, 119621), (212, 97051), (244, 84323), (1591, 12932), (1961, 10492), (2257, 9116), (2279, 9028), (2623, 7844), (3182, 6466), (3233, 6364), (3922, 5246), (4514, 4558)]