20693040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{571}}^1$

素因数の和:738

約数の個数: 80

約数和(自身を含む): 64686336

約数和(自身を除く): 43993296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 151, 240, 302, 453, 571, 604, 755, 906, 1142, 1208, 1510, 1713, 1812, 2265, 2284, 2416, 2855, 3020, 3426, 3624, 4530, 4568, 5710, 6040, 6852, 7248, 8565, 9060, 9136, 11420, 12080, 13704, 17130, 18120, 22840, 27408, 34260, 36240, 45680, 68520, 86221, 137040, 172442, 258663, 344884, 431105, 517326, 689768, 862210, 1034652, 1293315, 1379536, 1724420, 2069304, 2586630, 3448840, 4138608, 5173260, 6897680, 10346520, 20693040]

約数ペア:

[(1, 20693040), (2, 10346520), (3, 6897680), (4, 5173260), (5, 4138608), (6, 3448840), (8, 2586630), (10, 2069304), (12, 1724420), (15, 1379536), (16, 1293315), (20, 1034652), (24, 862210), (30, 689768), (40, 517326), (48, 431105), (60, 344884), (80, 258663), (120, 172442), (151, 137040), (240, 86221), (302, 68520), (453, 45680), (571, 36240), (604, 34260), (755, 27408), (906, 22840), (1142, 18120), (1208, 17130), (1510, 13704), (1713, 12080), (1812, 11420), (2265, 9136), (2284, 9060), (2416, 8565), (2855, 7248), (3020, 6852), (3426, 6040), (3624, 5710), (4530, 4568)]