1640676840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1242937}}^1$

素因数の和:1242962

約数の個数: 64

約数和(自身を含む): 5369492160

約数和(自身を除く): 3728815320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 1242937, 2485874, 3728811, 4971748, 6214685, 7457622, 9943496, 12429370, 13672307, 14915244, 18644055, 24858740, 27344614, 29830488, 37288110, 41016921, 49717480, 54689228, 68361535, 74576220, 82033842, 109378456, 136723070, 149152440, 164067684, 205084605, 273446140, 328135368, 410169210, 546892280, 820338420, 1640676840]

約数ペア:

[(1, 1640676840), (2, 820338420), (3, 546892280), (4, 410169210), (5, 328135368), (6, 273446140), (8, 205084605), (10, 164067684), (11, 149152440), (12, 136723070), (15, 109378456), (20, 82033842), (22, 74576220), (24, 68361535), (30, 54689228), (33, 49717480), (40, 41016921), (44, 37288110), (55, 29830488), (60, 27344614), (66, 24858740), (88, 18644055), (110, 14915244), (120, 13672307), (132, 12429370), (165, 9943496), (220, 7457622), (264, 6214685), (330, 4971748), (440, 3728811), (660, 2485874), (1320, 1242937)]