25987480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 62013600

約数和(自身を除く): 36026120

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 86, 116, 145, 172, 215, 232, 290, 344, 430, 521, 580, 860, 1042, 1160, 1247, 1720, 2084, 2494, 2605, 4168, 4988, 5210, 6235, 9976, 10420, 12470, 15109, 20840, 22403, 24940, 30218, 44806, 49880, 60436, 75545, 89612, 112015, 120872, 151090, 179224, 224030, 302180, 448060, 604360, 649687, 896120, 1299374, 2598748, 3248435, 5197496, 6496870, 12993740, 25987480]

約数ペア:

[(1, 25987480), (2, 12993740), (4, 6496870), (5, 5197496), (8, 3248435), (10, 2598748), (20, 1299374), (29, 896120), (40, 649687), (43, 604360), (58, 448060), (86, 302180), (116, 224030), (145, 179224), (172, 151090), (215, 120872), (232, 112015), (290, 89612), (344, 75545), (430, 60436), (521, 49880), (580, 44806), (860, 30218), (1042, 24940), (1160, 22403), (1247, 20840), (1720, 15109), (2084, 12470), (2494, 10420), (2605, 9976), (4168, 6235), (4988, 5210)]