78020480

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 202253760

約数和(自身を除く): 124233280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 71, 80, 85, 101, 128, 136, 142, 160, 170, 202, 272, 284, 320, 340, 355, 404, 505, 544, 568, 640, 680, 710, 808, 1010, 1088, 1136, 1207, 1360, 1420, 1616, 1717, 2020, 2176, 2272, 2414, 2720, 2840, 3232, 3434, 4040, 4544, 4828, 5440, 5680, 6035, 6464, 6868, 7171, 8080, 8585, 9088, 9656, 10880, 11360, 12070, 12928, 13736, 14342, 16160, 17170, 19312, 22720, 24140, 27472, 28684, 32320, 34340, 35855, 38624, 45440, 48280, 54944, 57368, 64640, 68680, 71710, 77248, 96560, 109888, 114736, 121907, 137360, 143420, 154496, 193120, 219776, 229472, 243814, 274720, 286840, 386240, 458944, 487628, 549440, 573680, 609535, 772480, 917888, 975256, 1098880, 1147360, 1219070, 1950512, 2294720, 2438140, 3901024, 4589440, 4876280, 7802048, 9752560, 15604096, 19505120, 39010240, 78020480]

約数ペア:

[(1, 78020480), (2, 39010240), (4, 19505120), (5, 15604096), (8, 9752560), (10, 7802048), (16, 4876280), (17, 4589440), (20, 3901024), (32, 2438140), (34, 2294720), (40, 1950512), (64, 1219070), (68, 1147360), (71, 1098880), (80, 975256), (85, 917888), (101, 772480), (128, 609535), (136, 573680), (142, 549440), (160, 487628), (170, 458944), (202, 386240), (272, 286840), (284, 274720), (320, 243814), (340, 229472), (355, 219776), (404, 193120), (505, 154496), (544, 143420), (568, 137360), (640, 121907), (680, 114736), (710, 109888), (808, 96560), (1010, 77248), (1088, 71710), (1136, 68680), (1207, 64640), (1360, 57368), (1420, 54944), (1616, 48280), (1717, 45440), (2020, 38624), (2176, 35855), (2272, 34340), (2414, 32320), (2720, 28684), (2840, 27472), (3232, 24140), (3434, 22720), (4040, 19312), (4544, 17170), (4828, 16160), (5440, 14342), (5680, 13736), (6035, 12928), (6464, 12070), (6868, 11360), (7171, 10880), (8080, 9656), (8585, 9088)]