279115520

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 720534528

約数和(自身を除く): 441419008

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 101, 127, 128, 136, 160, 170, 202, 254, 256, 272, 320, 340, 404, 505, 508, 544, 635, 640, 680, 808, 1010, 1016, 1088, 1270, 1280, 1360, 1616, 1717, 2020, 2032, 2159, 2176, 2540, 2720, 3232, 3434, 4040, 4064, 4318, 4352, 5080, 5440, 6464, 6868, 8080, 8128, 8585, 8636, 10160, 10795, 10880, 12827, 12928, 13736, 16160, 16256, 17170, 17272, 20320, 21590, 21760, 25654, 25856, 27472, 32320, 32512, 34340, 34544, 40640, 43180, 51308, 54944, 64135, 64640, 68680, 69088, 81280, 86360, 102616, 109888, 128270, 129280, 137360, 138176, 162560, 172720, 205232, 218059, 219776, 256540, 274720, 276352, 345440, 410464, 436118, 439552, 513080, 549440, 552704, 690880, 820928, 872236, 1026160, 1090295, 1098880, 1381760, 1641856, 1744472, 2052320, 2180590, 2197760, 2763520, 3283712, 3488944, 4104640, 4361180, 6977888, 8209280, 8722360, 13955776, 16418560, 17444720, 27911552, 34889440, 55823104, 69778880, 139557760, 279115520]

約数ペア:

[(1, 279115520), (2, 139557760), (4, 69778880), (5, 55823104), (8, 34889440), (10, 27911552), (16, 17444720), (17, 16418560), (20, 13955776), (32, 8722360), (34, 8209280), (40, 6977888), (64, 4361180), (68, 4104640), (80, 3488944), (85, 3283712), (101, 2763520), (127, 2197760), (128, 2180590), (136, 2052320), (160, 1744472), (170, 1641856), (202, 1381760), (254, 1098880), (256, 1090295), (272, 1026160), (320, 872236), (340, 820928), (404, 690880), (505, 552704), (508, 549440), (544, 513080), (635, 439552), (640, 436118), (680, 410464), (808, 345440), (1010, 276352), (1016, 274720), (1088, 256540), (1270, 219776), (1280, 218059), (1360, 205232), (1616, 172720), (1717, 162560), (2020, 138176), (2032, 137360), (2159, 129280), (2176, 128270), (2540, 109888), (2720, 102616), (3232, 86360), (3434, 81280), (4040, 69088), (4064, 68680), (4318, 64640), (4352, 64135), (5080, 54944), (5440, 51308), (6464, 43180), (6868, 40640), (8080, 34544), (8128, 34340), (8585, 32512), (8636, 32320), (10160, 27472), (10795, 25856), (10880, 25654), (12827, 21760), (12928, 21590), (13736, 20320), (16160, 17272), (16256, 17170)]