81882880

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 214570944

約数和(自身を除く): 132688064

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 53, 64, 68, 71, 80, 85, 106, 128, 136, 142, 160, 170, 212, 256, 265, 272, 284, 320, 340, 355, 424, 530, 544, 568, 640, 680, 710, 848, 901, 1060, 1088, 1136, 1207, 1280, 1360, 1420, 1696, 1802, 2120, 2176, 2272, 2414, 2720, 2840, 3392, 3604, 3763, 4240, 4352, 4505, 4544, 4828, 5440, 5680, 6035, 6784, 7208, 7526, 8480, 9010, 9088, 9656, 10880, 11360, 12070, 13568, 14416, 15052, 16960, 18020, 18176, 18815, 19312, 21760, 22720, 24140, 28832, 30104, 33920, 36040, 37630, 38624, 45440, 48280, 57664, 60208, 63971, 67840, 72080, 75260, 77248, 90880, 96560, 115328, 120416, 127942, 144160, 150520, 154496, 193120, 230656, 240832, 255884, 288320, 301040, 308992, 319855, 386240, 481664, 511768, 576640, 602080, 639710, 772480, 963328, 1023536, 1153280, 1204160, 1279420, 1544960, 2047072, 2408320, 2558840, 4094144, 4816640, 5117680, 8188288, 10235360, 16376576, 20470720, 40941440, 81882880]

約数ペア:

[(1, 81882880), (2, 40941440), (4, 20470720), (5, 16376576), (8, 10235360), (10, 8188288), (16, 5117680), (17, 4816640), (20, 4094144), (32, 2558840), (34, 2408320), (40, 2047072), (53, 1544960), (64, 1279420), (68, 1204160), (71, 1153280), (80, 1023536), (85, 963328), (106, 772480), (128, 639710), (136, 602080), (142, 576640), (160, 511768), (170, 481664), (212, 386240), (256, 319855), (265, 308992), (272, 301040), (284, 288320), (320, 255884), (340, 240832), (355, 230656), (424, 193120), (530, 154496), (544, 150520), (568, 144160), (640, 127942), (680, 120416), (710, 115328), (848, 96560), (901, 90880), (1060, 77248), (1088, 75260), (1136, 72080), (1207, 67840), (1280, 63971), (1360, 60208), (1420, 57664), (1696, 48280), (1802, 45440), (2120, 38624), (2176, 37630), (2272, 36040), (2414, 33920), (2720, 30104), (2840, 28832), (3392, 24140), (3604, 22720), (3763, 21760), (4240, 19312), (4352, 18815), (4505, 18176), (4544, 18020), (4828, 16960), (5440, 15052), (5680, 14416), (6035, 13568), (6784, 12070), (7208, 11360), (7526, 10880), (8480, 9656), (9010, 9088)]