51857840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:454

約数の個数: 80

約数和(自身を含む): 128488800

約数和(自身を除く): 76630960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 109, 152, 190, 218, 304, 313, 380, 436, 545, 626, 760, 872, 1090, 1252, 1520, 1565, 1744, 2071, 2180, 2504, 3130, 4142, 4360, 5008, 5947, 6260, 8284, 8720, 10355, 11894, 12520, 16568, 20710, 23788, 25040, 29735, 33136, 34117, 41420, 47576, 59470, 68234, 82840, 95152, 118940, 136468, 165680, 170585, 237880, 272936, 341170, 475760, 545872, 648223, 682340, 1296446, 1364680, 2592892, 2729360, 3241115, 5185784, 6482230, 10371568, 12964460, 25928920, 51857840]

約数ペア:

[(1, 51857840), (2, 25928920), (4, 12964460), (5, 10371568), (8, 6482230), (10, 5185784), (16, 3241115), (19, 2729360), (20, 2592892), (38, 1364680), (40, 1296446), (76, 682340), (80, 648223), (95, 545872), (109, 475760), (152, 341170), (190, 272936), (218, 237880), (304, 170585), (313, 165680), (380, 136468), (436, 118940), (545, 95152), (626, 82840), (760, 68234), (872, 59470), (1090, 47576), (1252, 41420), (1520, 34117), (1565, 33136), (1744, 29735), (2071, 25040), (2180, 23788), (2504, 20710), (3130, 16568), (4142, 12520), (4360, 11894), (5008, 10355), (5947, 8720), (6260, 8284)]