87252920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{641}}^1$

素因数の和:776

約数の個数: 64

約数和(自身を含む): 203847840

約数和(自身を除く): 116594920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 83, 164, 166, 205, 328, 332, 410, 415, 641, 664, 820, 830, 1282, 1640, 1660, 2564, 3205, 3320, 3403, 5128, 6410, 6806, 12820, 13612, 17015, 25640, 26281, 27224, 34030, 52562, 53203, 68060, 105124, 106406, 131405, 136120, 210248, 212812, 262810, 266015, 425624, 525620, 532030, 1051240, 1064060, 2128120, 2181323, 4362646, 8725292, 10906615, 17450584, 21813230, 43626460, 87252920]

約数ペア:

[(1, 87252920), (2, 43626460), (4, 21813230), (5, 17450584), (8, 10906615), (10, 8725292), (20, 4362646), (40, 2181323), (41, 2128120), (82, 1064060), (83, 1051240), (164, 532030), (166, 525620), (205, 425624), (328, 266015), (332, 262810), (410, 212812), (415, 210248), (641, 136120), (664, 131405), (820, 106406), (830, 105124), (1282, 68060), (1640, 53203), (1660, 52562), (2564, 34030), (3205, 27224), (3320, 26281), (3403, 25640), (5128, 17015), (6410, 13612), (6806, 12820)]