81204872

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1613}}^1$

素因数の和:1686

約数の個数: 64

約数和(自身を含む): 185932800

約数和(自身を除く): 104727928

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 31, 56, 58, 62, 116, 124, 203, 217, 232, 248, 406, 434, 812, 868, 899, 1613, 1624, 1736, 1798, 3226, 3596, 6293, 6452, 7192, 11291, 12586, 12904, 22582, 25172, 45164, 46777, 50003, 50344, 90328, 93554, 100006, 187108, 200012, 327439, 350021, 374216, 400024, 654878, 700042, 1309756, 1400084, 1450087, 2619512, 2800168, 2900174, 5800348, 10150609, 11600696, 20301218, 40602436, 81204872]

約数ペア:

[(1, 81204872), (2, 40602436), (4, 20301218), (7, 11600696), (8, 10150609), (14, 5800348), (28, 2900174), (29, 2800168), (31, 2619512), (56, 1450087), (58, 1400084), (62, 1309756), (116, 700042), (124, 654878), (203, 400024), (217, 374216), (232, 350021), (248, 327439), (406, 200012), (434, 187108), (812, 100006), (868, 93554), (899, 90328), (1613, 50344), (1624, 50003), (1736, 46777), (1798, 45164), (3226, 25172), (3596, 22582), (6293, 12904), (6452, 12586), (7192, 11291)]