20054440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1069}}^1$

素因数の和:1154

約数の個数: 64

約数和(自身を含む): 52387200

約数和(自身を除く): 32332760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1069, 1340, 1876, 2138, 2345, 2680, 3752, 4276, 4690, 5345, 7483, 8552, 9380, 10690, 14966, 18760, 21380, 29932, 37415, 42760, 59864, 71623, 74830, 143246, 149660, 286492, 299320, 358115, 501361, 572984, 716230, 1002722, 1432460, 2005444, 2506805, 2864920, 4010888, 5013610, 10027220, 20054440]

約数ペア:

[(1, 20054440), (2, 10027220), (4, 5013610), (5, 4010888), (7, 2864920), (8, 2506805), (10, 2005444), (14, 1432460), (20, 1002722), (28, 716230), (35, 572984), (40, 501361), (56, 358115), (67, 299320), (70, 286492), (134, 149660), (140, 143246), (268, 74830), (280, 71623), (335, 59864), (469, 42760), (536, 37415), (670, 29932), (938, 21380), (1069, 18760), (1340, 14966), (1876, 10690), (2138, 9380), (2345, 8552), (2680, 7483), (3752, 5345), (4276, 4690)]