397344920

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{28961}}^1$

素因数の和:28993

約数の個数: 64

約数和(自身を含む): 1042632000

約数和(自身を除く): 645287080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6860, 13720, 28961, 57922, 115844, 144805, 202727, 231688, 289610, 405454, 579220, 810908, 1013635, 1158440, 1419089, 1621816, 2027270, 2838178, 4054540, 5676356, 7095445, 8109080, 9933623, 11352712, 14190890, 19867246, 28381780, 39734492, 49668115, 56763560, 79468984, 99336230, 198672460, 397344920]

約数ペア:

[(1, 397344920), (2, 198672460), (4, 99336230), (5, 79468984), (7, 56763560), (8, 49668115), (10, 39734492), (14, 28381780), (20, 19867246), (28, 14190890), (35, 11352712), (40, 9933623), (49, 8109080), (56, 7095445), (70, 5676356), (98, 4054540), (140, 2838178), (196, 2027270), (245, 1621816), (280, 1419089), (343, 1158440), (392, 1013635), (490, 810908), (686, 579220), (980, 405454), (1372, 289610), (1715, 231688), (1960, 202727), (2744, 144805), (3430, 115844), (6860, 57922), (13720, 28961)]