81659840

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{883}}^1$

素因数の和:934

約数の個数: 84

約数和(自身を含む): 206797656

約数和(自身を除く): 125137816

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 289, 320, 340, 544, 578, 680, 883, 1088, 1156, 1360, 1445, 1766, 2312, 2720, 2890, 3532, 4415, 4624, 5440, 5780, 7064, 8830, 9248, 11560, 14128, 15011, 17660, 18496, 23120, 28256, 30022, 35320, 46240, 56512, 60044, 70640, 75055, 92480, 120088, 141280, 150110, 240176, 255187, 282560, 300220, 480352, 510374, 600440, 960704, 1020748, 1200880, 1275935, 2041496, 2401760, 2551870, 4082992, 4803520, 5103740, 8165984, 10207480, 16331968, 20414960, 40829920, 81659840]

約数ペア:

[(1, 81659840), (2, 40829920), (4, 20414960), (5, 16331968), (8, 10207480), (10, 8165984), (16, 5103740), (17, 4803520), (20, 4082992), (32, 2551870), (34, 2401760), (40, 2041496), (64, 1275935), (68, 1200880), (80, 1020748), (85, 960704), (136, 600440), (160, 510374), (170, 480352), (272, 300220), (289, 282560), (320, 255187), (340, 240176), (544, 150110), (578, 141280), (680, 120088), (883, 92480), (1088, 75055), (1156, 70640), (1360, 60044), (1445, 56512), (1766, 46240), (2312, 35320), (2720, 30022), (2890, 28256), (3532, 23120), (4415, 18496), (4624, 17660), (5440, 15011), (5780, 14128), (7064, 11560), (8830, 9248)]