206831720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6329}}^1$

素因数の和:6402

約数の個数: 64

約数和(自身を含む): 501336000

約数和(自身を除く): 294504280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 3268, 4085, 6329, 6536, 8170, 12658, 16340, 25316, 31645, 32680, 50632, 63290, 120251, 126580, 240502, 253160, 272147, 481004, 544294, 601255, 962008, 1088588, 1202510, 1360735, 2177176, 2405020, 2721470, 4810040, 5170793, 5442940, 10341586, 10885880, 20683172, 25853965, 41366344, 51707930, 103415860, 206831720]

約数ペア:

[(1, 206831720), (2, 103415860), (4, 51707930), (5, 41366344), (8, 25853965), (10, 20683172), (19, 10885880), (20, 10341586), (38, 5442940), (40, 5170793), (43, 4810040), (76, 2721470), (86, 2405020), (95, 2177176), (152, 1360735), (172, 1202510), (190, 1088588), (215, 962008), (344, 601255), (380, 544294), (430, 481004), (760, 272147), (817, 253160), (860, 240502), (1634, 126580), (1720, 120251), (3268, 63290), (4085, 50632), (6329, 32680), (6536, 31645), (8170, 25316), (12658, 16340)]