128772880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{84719}}^1$

素因数の和:84751

約数の個数: 40

約数和(自身を含む): 315158400

約数和(自身を除く): 186385520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 84719, 169438, 338876, 423595, 677752, 847190, 1355504, 1609661, 1694380, 3219322, 3388760, 6438644, 6777520, 8048305, 12877288, 16096610, 25754576, 32193220, 64386440, 128772880]

約数ペア:

[(1, 128772880), (2, 64386440), (4, 32193220), (5, 25754576), (8, 16096610), (10, 12877288), (16, 8048305), (19, 6777520), (20, 6438644), (38, 3388760), (40, 3219322), (76, 1694380), (80, 1609661), (95, 1355504), (152, 847190), (190, 677752), (304, 423595), (380, 338876), (760, 169438), (1520, 84719)]