20001852

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 55240640

約数和(自身を除く): 35238788

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 79, 117, 156, 158, 234, 237, 316, 468, 474, 541, 711, 948, 1027, 1082, 1422, 1623, 2054, 2164, 2844, 3081, 3246, 4108, 4869, 6162, 6492, 7033, 9243, 9738, 12324, 14066, 18486, 19476, 21099, 28132, 36972, 42198, 42739, 63297, 84396, 85478, 126594, 128217, 170956, 253188, 256434, 384651, 512868, 555607, 769302, 1111214, 1538604, 1666821, 2222428, 3333642, 5000463, 6667284, 10000926, 20001852]

約数ペア:

[(1, 20001852), (2, 10000926), (3, 6667284), (4, 5000463), (6, 3333642), (9, 2222428), (12, 1666821), (13, 1538604), (18, 1111214), (26, 769302), (36, 555607), (39, 512868), (52, 384651), (78, 256434), (79, 253188), (117, 170956), (156, 128217), (158, 126594), (234, 85478), (237, 84396), (316, 63297), (468, 42739), (474, 42198), (541, 36972), (711, 28132), (948, 21099), (1027, 19476), (1082, 18486), (1422, 14066), (1623, 12324), (2054, 9738), (2164, 9243), (2844, 7033), (3081, 6492), (3246, 6162), (4108, 4869)]