61613720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1117}}^1$

素因数の和:1332

約数の個数: 64

約数和(自身を含む): 159382080

約数和(自身を除く): 97768360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 788, 985, 1117, 1379, 1576, 1970, 2234, 2758, 3940, 4468, 5516, 5585, 6895, 7819, 7880, 8936, 11032, 11170, 13790, 15638, 22340, 27580, 31276, 39095, 44680, 55160, 62552, 78190, 156380, 220049, 312760, 440098, 880196, 1100245, 1540343, 1760392, 2200490, 3080686, 4400980, 6161372, 7701715, 8801960, 12322744, 15403430, 30806860, 61613720]

約数ペア:

[(1, 61613720), (2, 30806860), (4, 15403430), (5, 12322744), (7, 8801960), (8, 7701715), (10, 6161372), (14, 4400980), (20, 3080686), (28, 2200490), (35, 1760392), (40, 1540343), (56, 1100245), (70, 880196), (140, 440098), (197, 312760), (280, 220049), (394, 156380), (788, 78190), (985, 62552), (1117, 55160), (1379, 44680), (1576, 39095), (1970, 31276), (2234, 27580), (2758, 22340), (3940, 15638), (4468, 13790), (5516, 11170), (5585, 11032), (6895, 8936), (7819, 7880)]