87286640

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{3181}}^1$

素因数の和:3215

約数の個数: 80

約数和(自身を含む): 236740800

約数和(自身を除く): 149454160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3181, 3430, 3920, 5488, 6362, 6860, 12724, 13720, 15905, 22267, 25448, 27440, 31810, 44534, 50896, 63620, 89068, 111335, 127240, 155869, 178136, 222670, 254480, 311738, 356272, 445340, 623476, 779345, 890680, 1091083, 1246952, 1558690, 1781360, 2182166, 2493904, 3117380, 4364332, 5455415, 6234760, 8728664, 10910830, 12469520, 17457328, 21821660, 43643320, 87286640]

約数ペア:

[(1, 87286640), (2, 43643320), (4, 21821660), (5, 17457328), (7, 12469520), (8, 10910830), (10, 8728664), (14, 6234760), (16, 5455415), (20, 4364332), (28, 3117380), (35, 2493904), (40, 2182166), (49, 1781360), (56, 1558690), (70, 1246952), (80, 1091083), (98, 890680), (112, 779345), (140, 623476), (196, 445340), (245, 356272), (280, 311738), (343, 254480), (392, 222670), (490, 178136), (560, 155869), (686, 127240), (784, 111335), (980, 89068), (1372, 63620), (1715, 50896), (1960, 44534), (2744, 31810), (3181, 27440), (3430, 25448), (3920, 22267), (5488, 15905), (6362, 13720), (6860, 12724)]