255655720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 585558720

約数和(自身を除く): 329903000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 163, 226, 326, 347, 452, 565, 652, 694, 815, 904, 1130, 1304, 1388, 1630, 1735, 2260, 2776, 3260, 3470, 4520, 6520, 6940, 13880, 18419, 36838, 39211, 56561, 73676, 78422, 92095, 113122, 147352, 156844, 184190, 196055, 226244, 282805, 313688, 368380, 392110, 452488, 565610, 736760, 784220, 1131220, 1568440, 2262440, 6391393, 12782786, 25565572, 31956965, 51131144, 63913930, 127827860, 255655720]

約数ペア:

[(1, 255655720), (2, 127827860), (4, 63913930), (5, 51131144), (8, 31956965), (10, 25565572), (20, 12782786), (40, 6391393), (113, 2262440), (163, 1568440), (226, 1131220), (326, 784220), (347, 736760), (452, 565610), (565, 452488), (652, 392110), (694, 368380), (815, 313688), (904, 282805), (1130, 226244), (1304, 196055), (1388, 184190), (1630, 156844), (1735, 147352), (2260, 113122), (2776, 92095), (3260, 78422), (3470, 73676), (4520, 56561), (6520, 39211), (6940, 36838), (13880, 18419)]