31317760

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:633

約数の個数: 72

約数和(自身を含む): 76895280

約数和(自身を除く): 45577520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 569, 640, 688, 860, 1138, 1280, 1376, 1720, 2276, 2752, 2845, 3440, 4552, 5504, 5690, 6880, 9104, 11008, 11380, 13760, 18208, 22760, 24467, 27520, 36416, 45520, 48934, 55040, 72832, 91040, 97868, 122335, 145664, 182080, 195736, 244670, 364160, 391472, 489340, 728320, 782944, 978680, 1565888, 1957360, 3131776, 3914720, 6263552, 7829440, 15658880, 31317760]

約数ペア:

[(1, 31317760), (2, 15658880), (4, 7829440), (5, 6263552), (8, 3914720), (10, 3131776), (16, 1957360), (20, 1565888), (32, 978680), (40, 782944), (43, 728320), (64, 489340), (80, 391472), (86, 364160), (128, 244670), (160, 195736), (172, 182080), (215, 145664), (256, 122335), (320, 97868), (344, 91040), (430, 72832), (569, 55040), (640, 48934), (688, 45520), (860, 36416), (1138, 27520), (1280, 24467), (1376, 22760), (1720, 18208), (2276, 13760), (2752, 11380), (2845, 11008), (3440, 9104), (4552, 6880), (5504, 5690)]