408159206

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{991}}^1$

素因数の和:1117

約数の個数: 64

約数和(自身を含む): 789282816

約数和(自身を除く): 381123610

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 73, 91, 146, 182, 217, 403, 434, 511, 806, 949, 991, 1022, 1898, 1982, 2263, 2821, 4526, 5642, 6643, 6937, 12883, 13286, 13874, 15841, 25766, 29419, 30721, 31682, 58838, 61442, 72343, 90181, 144686, 180362, 205933, 215047, 399373, 411866, 430094, 506401, 798746, 940459, 1012802, 1880918, 2242633, 2795611, 4485266, 5591222, 6583213, 13166426, 15698431, 29154229, 31396862, 58308458, 204079603, 408159206]

約数ペア:

[(1, 408159206), (2, 204079603), (7, 58308458), (13, 31396862), (14, 29154229), (26, 15698431), (31, 13166426), (62, 6583213), (73, 5591222), (91, 4485266), (146, 2795611), (182, 2242633), (217, 1880918), (403, 1012802), (434, 940459), (511, 798746), (806, 506401), (949, 430094), (991, 411866), (1022, 399373), (1898, 215047), (1982, 205933), (2263, 180362), (2821, 144686), (4526, 90181), (5642, 72343), (6643, 61442), (6937, 58838), (12883, 31682), (13286, 30721), (13874, 29419), (15841, 25766)]