20057752

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 44906400

約数和(自身を除く): 24848648

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 89, 104, 143, 178, 197, 286, 356, 394, 572, 712, 788, 979, 1144, 1157, 1576, 1958, 2167, 2314, 2561, 3916, 4334, 4628, 5122, 7832, 8668, 9256, 10244, 12727, 17336, 17533, 20488, 25454, 28171, 35066, 50908, 56342, 70132, 101816, 112684, 140264, 192863, 225368, 227929, 385726, 455858, 771452, 911716, 1542904, 1823432, 2507219, 5014438, 10028876, 20057752]

約数ペア:

[(1, 20057752), (2, 10028876), (4, 5014438), (8, 2507219), (11, 1823432), (13, 1542904), (22, 911716), (26, 771452), (44, 455858), (52, 385726), (88, 227929), (89, 225368), (104, 192863), (143, 140264), (178, 112684), (197, 101816), (286, 70132), (356, 56342), (394, 50908), (572, 35066), (712, 28171), (788, 25454), (979, 20488), (1144, 17533), (1157, 17336), (1576, 12727), (1958, 10244), (2167, 9256), (2314, 8668), (2561, 7832), (3916, 5122), (4334, 4628)]