128488440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8431}}^1$

素因数の和:8572

約数の個数: 64

約数和(自身を含む): 388546560

約数和(自身を除く): 260058120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 127, 254, 381, 508, 635, 762, 1016, 1270, 1524, 1905, 2540, 3048, 3810, 5080, 7620, 8431, 15240, 16862, 25293, 33724, 42155, 50586, 67448, 84310, 101172, 126465, 168620, 202344, 252930, 337240, 505860, 1011720, 1070737, 2141474, 3212211, 4282948, 5353685, 6424422, 8565896, 10707370, 12848844, 16061055, 21414740, 25697688, 32122110, 42829480, 64244220, 128488440]

約数ペア:

[(1, 128488440), (2, 64244220), (3, 42829480), (4, 32122110), (5, 25697688), (6, 21414740), (8, 16061055), (10, 12848844), (12, 10707370), (15, 8565896), (20, 6424422), (24, 5353685), (30, 4282948), (40, 3212211), (60, 2141474), (120, 1070737), (127, 1011720), (254, 505860), (381, 337240), (508, 252930), (635, 202344), (762, 168620), (1016, 126465), (1270, 101172), (1524, 84310), (1905, 67448), (2540, 50586), (3048, 42155), (3810, 33724), (5080, 25293), (7620, 16862), (8431, 15240)]