409935880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 997401600

約数和(自身を除く): 587465720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 73, 94, 103, 116, 145, 146, 188, 206, 232, 235, 290, 292, 365, 376, 412, 470, 515, 580, 584, 730, 824, 940, 1030, 1160, 1363, 1460, 1880, 2060, 2117, 2726, 2920, 2987, 3431, 4120, 4234, 4841, 5452, 5974, 6815, 6862, 7519, 8468, 9682, 10585, 10904, 11948, 13630, 13724, 14935, 15038, 16936, 17155, 19364, 21170, 23896, 24205, 27260, 27448, 29870, 30076, 34310, 37595, 38728, 42340, 48410, 54520, 59740, 60152, 68620, 75190, 84680, 96820, 99499, 119480, 137240, 140389, 150380, 193640, 198998, 218051, 280778, 300760, 353393, 397996, 436102, 497495, 561556, 701945, 706786, 795992, 872204, 994990, 1090255, 1123112, 1403890, 1413572, 1744408, 1766965, 1989980, 2180510, 2807780, 2827144, 3533930, 3979960, 4361020, 5615560, 7067860, 8722040, 10248397, 14135720, 20496794, 40993588, 51241985, 81987176, 102483970, 204967940, 409935880]

約数ペア:

[(1, 409935880), (2, 204967940), (4, 102483970), (5, 81987176), (8, 51241985), (10, 40993588), (20, 20496794), (29, 14135720), (40, 10248397), (47, 8722040), (58, 7067860), (73, 5615560), (94, 4361020), (103, 3979960), (116, 3533930), (145, 2827144), (146, 2807780), (188, 2180510), (206, 1989980), (232, 1766965), (235, 1744408), (290, 1413572), (292, 1403890), (365, 1123112), (376, 1090255), (412, 994990), (470, 872204), (515, 795992), (580, 706786), (584, 701945), (730, 561556), (824, 497495), (940, 436102), (1030, 397996), (1160, 353393), (1363, 300760), (1460, 280778), (1880, 218051), (2060, 198998), (2117, 193640), (2726, 150380), (2920, 140389), (2987, 137240), (3431, 119480), (4120, 99499), (4234, 96820), (4841, 84680), (5452, 75190), (5974, 68620), (6815, 60152), (6862, 59740), (7519, 54520), (8468, 48410), (9682, 42340), (10585, 38728), (10904, 37595), (11948, 34310), (13630, 30076), (13724, 29870), (14935, 27448), (15038, 27260), (16936, 24205), (17155, 23896), (19364, 21170)]