68490440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{397}}^1$

素因数の和:654

約数の個数: 64

約数和(自身を含む): 163339200

約数和(自身を除く): 94848760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 227, 380, 397, 454, 760, 794, 908, 1135, 1588, 1816, 1985, 2270, 3176, 3970, 4313, 4540, 7543, 7940, 8626, 9080, 15086, 15880, 17252, 21565, 30172, 34504, 37715, 43130, 60344, 75430, 86260, 90119, 150860, 172520, 180238, 301720, 360476, 450595, 720952, 901190, 1712261, 1802380, 3424522, 3604760, 6849044, 8561305, 13698088, 17122610, 34245220, 68490440]

約数ペア:

[(1, 68490440), (2, 34245220), (4, 17122610), (5, 13698088), (8, 8561305), (10, 6849044), (19, 3604760), (20, 3424522), (38, 1802380), (40, 1712261), (76, 901190), (95, 720952), (152, 450595), (190, 360476), (227, 301720), (380, 180238), (397, 172520), (454, 150860), (760, 90119), (794, 86260), (908, 75430), (1135, 60344), (1588, 43130), (1816, 37715), (1985, 34504), (2270, 30172), (3176, 21565), (3970, 17252), (4313, 15880), (4540, 15086), (7543, 9080), (7940, 8626)]