208091900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1123}}^1$

素因数の和:1263

約数の個数: 72

約数和(自身を含む): 482937840

約数和(自身を除く): 274845940

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 109, 170, 218, 340, 425, 436, 545, 850, 1090, 1123, 1700, 1853, 2180, 2246, 2725, 3706, 4492, 5450, 5615, 7412, 9265, 10900, 11230, 18530, 19091, 22460, 28075, 37060, 38182, 46325, 56150, 76364, 92650, 95455, 112300, 122407, 185300, 190910, 244814, 381820, 477275, 489628, 612035, 954550, 1224070, 1909100, 2080919, 2448140, 3060175, 4161838, 6120350, 8323676, 10404595, 12240700, 20809190, 41618380, 52022975, 104045950, 208091900]

約数ペア:

[(1, 208091900), (2, 104045950), (4, 52022975), (5, 41618380), (10, 20809190), (17, 12240700), (20, 10404595), (25, 8323676), (34, 6120350), (50, 4161838), (68, 3060175), (85, 2448140), (100, 2080919), (109, 1909100), (170, 1224070), (218, 954550), (340, 612035), (425, 489628), (436, 477275), (545, 381820), (850, 244814), (1090, 190910), (1123, 185300), (1700, 122407), (1853, 112300), (2180, 95455), (2246, 92650), (2725, 76364), (3706, 56150), (4492, 46325), (5450, 38182), (5615, 37060), (7412, 28075), (9265, 22460), (10900, 19091), (11230, 18530)]