321010880

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^2\times {\mathrm{199}}^1$

素因数の和:358

約数の個数: 84

約数和(自身を含む): 779221200

約数和(自身を除く): 458210320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 199, 284, 320, 355, 398, 568, 710, 796, 995, 1136, 1420, 1592, 1990, 2272, 2840, 3184, 3980, 4544, 5041, 5680, 6368, 7960, 10082, 11360, 12736, 14129, 15920, 20164, 22720, 25205, 28258, 31840, 40328, 50410, 56516, 63680, 70645, 80656, 100820, 113032, 141290, 161312, 201640, 226064, 282580, 322624, 403280, 452128, 565160, 806560, 904256, 1003159, 1130320, 1613120, 2006318, 2260640, 4012636, 4521280, 5015795, 8025272, 10031590, 16050544, 20063180, 32101088, 40126360, 64202176, 80252720, 160505440, 321010880]

約数ペア:

[(1, 321010880), (2, 160505440), (4, 80252720), (5, 64202176), (8, 40126360), (10, 32101088), (16, 20063180), (20, 16050544), (32, 10031590), (40, 8025272), (64, 5015795), (71, 4521280), (80, 4012636), (142, 2260640), (160, 2006318), (199, 1613120), (284, 1130320), (320, 1003159), (355, 904256), (398, 806560), (568, 565160), (710, 452128), (796, 403280), (995, 322624), (1136, 282580), (1420, 226064), (1592, 201640), (1990, 161312), (2272, 141290), (2840, 113032), (3184, 100820), (3980, 80656), (4544, 70645), (5041, 63680), (5680, 56516), (6368, 50410), (7960, 40328), (10082, 31840), (11360, 28258), (12736, 25205), (14129, 22720), (15920, 20164)]