30813160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:303

約数の個数: 96

約数和(自身を含む): 82080000

約数和(自身を除く): 51266840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 79, 98, 140, 158, 196, 199, 245, 280, 316, 392, 395, 398, 490, 553, 632, 790, 796, 980, 995, 1106, 1393, 1580, 1592, 1960, 1990, 2212, 2765, 2786, 3160, 3871, 3980, 4424, 5530, 5572, 6965, 7742, 7960, 9751, 11060, 11144, 13930, 15484, 15721, 19355, 19502, 22120, 27860, 30968, 31442, 38710, 39004, 48755, 55720, 62884, 77420, 78008, 78605, 97510, 110047, 125768, 154840, 157210, 195020, 220094, 314420, 390040, 440188, 550235, 628840, 770329, 880376, 1100470, 1540658, 2200940, 3081316, 3851645, 4401880, 6162632, 7703290, 15406580, 30813160]

約数ペア:

[(1, 30813160), (2, 15406580), (4, 7703290), (5, 6162632), (7, 4401880), (8, 3851645), (10, 3081316), (14, 2200940), (20, 1540658), (28, 1100470), (35, 880376), (40, 770329), (49, 628840), (56, 550235), (70, 440188), (79, 390040), (98, 314420), (140, 220094), (158, 195020), (196, 157210), (199, 154840), (245, 125768), (280, 110047), (316, 97510), (392, 78605), (395, 78008), (398, 77420), (490, 62884), (553, 55720), (632, 48755), (790, 39004), (796, 38710), (980, 31442), (995, 30968), (1106, 27860), (1393, 22120), (1580, 19502), (1592, 19355), (1960, 15721), (1990, 15484), (2212, 13930), (2765, 11144), (2786, 11060), (3160, 9751), (3871, 7960), (3980, 7742), (4424, 6965), (5530, 5572)]