816274720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:315

約数の個数: 144

約数和(自身を含む): 2079544320

約数和(自身を除く): 1263269600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 127, 136, 139, 160, 170, 254, 272, 278, 289, 340, 508, 544, 556, 578, 635, 680, 695, 1016, 1112, 1156, 1270, 1360, 1390, 1445, 2032, 2159, 2224, 2312, 2363, 2540, 2720, 2780, 2890, 4064, 4318, 4448, 4624, 4726, 5080, 5560, 5780, 8636, 9248, 9452, 10160, 10795, 11120, 11560, 11815, 17272, 17653, 18904, 20320, 21590, 22240, 23120, 23630, 34544, 35306, 36703, 37808, 40171, 43180, 46240, 47260, 69088, 70612, 73406, 75616, 80342, 86360, 88265, 94520, 141224, 146812, 160684, 172720, 176530, 183515, 189040, 200855, 282448, 293624, 300101, 321368, 345440, 353060, 367030, 378080, 401710, 564896, 587248, 600202, 642736, 706120, 734060, 803420, 1174496, 1200404, 1285472, 1412240, 1468120, 1500505, 1606840, 2400808, 2824480, 2936240, 3001010, 3213680, 4801616, 5101717, 5872480, 6002020, 6427360, 9603232, 10203434, 12004040, 20406868, 24008080, 25508585, 40813736, 48016160, 51017170, 81627472, 102034340, 163254944, 204068680, 408137360, 816274720]

約数ペア:

[(1, 816274720), (2, 408137360), (4, 204068680), (5, 163254944), (8, 102034340), (10, 81627472), (16, 51017170), (17, 48016160), (20, 40813736), (32, 25508585), (34, 24008080), (40, 20406868), (68, 12004040), (80, 10203434), (85, 9603232), (127, 6427360), (136, 6002020), (139, 5872480), (160, 5101717), (170, 4801616), (254, 3213680), (272, 3001010), (278, 2936240), (289, 2824480), (340, 2400808), (508, 1606840), (544, 1500505), (556, 1468120), (578, 1412240), (635, 1285472), (680, 1200404), (695, 1174496), (1016, 803420), (1112, 734060), (1156, 706120), (1270, 642736), (1360, 600202), (1390, 587248), (1445, 564896), (2032, 401710), (2159, 378080), (2224, 367030), (2312, 353060), (2363, 345440), (2540, 321368), (2720, 300101), (2780, 293624), (2890, 282448), (4064, 200855), (4318, 189040), (4448, 183515), (4624, 176530), (4726, 172720), (5080, 160684), (5560, 146812), (5780, 141224), (8636, 94520), (9248, 88265), (9452, 86360), (10160, 80342), (10795, 75616), (11120, 73406), (11560, 70612), (11815, 69088), (17272, 47260), (17653, 46240), (18904, 43180), (20320, 40171), (21590, 37808), (22240, 36703), (23120, 35306), (23630, 34544)]