257400570

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{72101}}^1$

素因数の和:72135

約数の個数: 64

約数和(自身を含む): 747553536

約数和(自身を除く): 490152966

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 30, 34, 35, 42, 51, 70, 85, 102, 105, 119, 170, 210, 238, 255, 357, 510, 595, 714, 1190, 1785, 3570, 72101, 144202, 216303, 360505, 432606, 504707, 721010, 1009414, 1081515, 1225717, 1514121, 2163030, 2451434, 2523535, 3028242, 3677151, 5047070, 6128585, 7354302, 7570605, 8580019, 12257170, 15141210, 17160038, 18385755, 25740057, 36771510, 42900095, 51480114, 85800190, 128700285, 257400570]

約数ペア:

[(1, 257400570), (2, 128700285), (3, 85800190), (5, 51480114), (6, 42900095), (7, 36771510), (10, 25740057), (14, 18385755), (15, 17160038), (17, 15141210), (21, 12257170), (30, 8580019), (34, 7570605), (35, 7354302), (42, 6128585), (51, 5047070), (70, 3677151), (85, 3028242), (102, 2523535), (105, 2451434), (119, 2163030), (170, 1514121), (210, 1225717), (238, 1081515), (255, 1009414), (357, 721010), (510, 504707), (595, 432606), (714, 360505), (1190, 216303), (1785, 144202), (3570, 72101)]