128836840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{839}}^1$

素因数の和:1210

約数の個数: 64

約数和(自身を含む): 317520000

約数和(自身を除く): 188683160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 349, 440, 698, 839, 1396, 1678, 1745, 2792, 3356, 3490, 3839, 4195, 6712, 6980, 7678, 8390, 9229, 13960, 15356, 16780, 18458, 19195, 30712, 33560, 36916, 38390, 46145, 73832, 76780, 92290, 153560, 184580, 292811, 369160, 585622, 1171244, 1464055, 2342488, 2928110, 3220921, 5856220, 6441842, 11712440, 12883684, 16104605, 25767368, 32209210, 64418420, 128836840]

約数ペア:

[(1, 128836840), (2, 64418420), (4, 32209210), (5, 25767368), (8, 16104605), (10, 12883684), (11, 11712440), (20, 6441842), (22, 5856220), (40, 3220921), (44, 2928110), (55, 2342488), (88, 1464055), (110, 1171244), (220, 585622), (349, 369160), (440, 292811), (698, 184580), (839, 153560), (1396, 92290), (1678, 76780), (1745, 73832), (2792, 46145), (3356, 38390), (3490, 36916), (3839, 33560), (4195, 30712), (6712, 19195), (6980, 18458), (7678, 16780), (8390, 15356), (9229, 13960)]