8117840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:204

約数の個数: 80

約数和(自身を含む): 20570112

約数和(自身を除く): 12452272

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 127, 136, 170, 188, 235, 254, 272, 340, 376, 470, 508, 635, 680, 752, 799, 940, 1016, 1270, 1360, 1598, 1880, 2032, 2159, 2540, 3196, 3760, 3995, 4318, 5080, 5969, 6392, 7990, 8636, 10160, 10795, 11938, 12784, 15980, 17272, 21590, 23876, 29845, 31960, 34544, 43180, 47752, 59690, 63920, 86360, 95504, 101473, 119380, 172720, 202946, 238760, 405892, 477520, 507365, 811784, 1014730, 1623568, 2029460, 4058920, 8117840]

約数ペア:

[(1, 8117840), (2, 4058920), (4, 2029460), (5, 1623568), (8, 1014730), (10, 811784), (16, 507365), (17, 477520), (20, 405892), (34, 238760), (40, 202946), (47, 172720), (68, 119380), (80, 101473), (85, 95504), (94, 86360), (127, 63920), (136, 59690), (170, 47752), (188, 43180), (235, 34544), (254, 31960), (272, 29845), (340, 23876), (376, 21590), (470, 17272), (508, 15980), (635, 12784), (680, 11938), (752, 10795), (799, 10160), (940, 8636), (1016, 7990), (1270, 6392), (1360, 5969), (1598, 5080), (1880, 4318), (2032, 3995), (2159, 3760), (2540, 3196)]