261471720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8681}}^1$

素因数の和:8946

約数の個数: 64

約数和(自身を含む): 787631040

約数和(自身を除く): 526159320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 251, 502, 753, 1004, 1255, 1506, 2008, 2510, 3012, 3765, 5020, 6024, 7530, 8681, 10040, 15060, 17362, 26043, 30120, 34724, 43405, 52086, 69448, 86810, 104172, 130215, 173620, 208344, 260430, 347240, 520860, 1041720, 2178931, 4357862, 6536793, 8715724, 10894655, 13073586, 17431448, 21789310, 26147172, 32683965, 43578620, 52294344, 65367930, 87157240, 130735860, 261471720]

約数ペア:

[(1, 261471720), (2, 130735860), (3, 87157240), (4, 65367930), (5, 52294344), (6, 43578620), (8, 32683965), (10, 26147172), (12, 21789310), (15, 17431448), (20, 13073586), (24, 10894655), (30, 8715724), (40, 6536793), (60, 4357862), (120, 2178931), (251, 1041720), (502, 520860), (753, 347240), (1004, 260430), (1255, 208344), (1506, 173620), (2008, 130215), (2510, 104172), (3012, 86810), (3765, 69448), (5020, 52086), (6024, 43405), (7530, 34724), (8681, 30120), (10040, 26043), (15060, 17362)]