30478840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{547}}^1$

素因数の和:764

約数の個数: 64

約数和(自身を含む): 78912000

約数和(自身を除く): 48433160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 280, 398, 547, 796, 995, 1094, 1393, 1592, 1990, 2188, 2735, 2786, 3829, 3980, 4376, 5470, 5572, 6965, 7658, 7960, 10940, 11144, 13930, 15316, 19145, 21880, 27860, 30632, 38290, 55720, 76580, 108853, 153160, 217706, 435412, 544265, 761971, 870824, 1088530, 1523942, 2177060, 3047884, 3809855, 4354120, 6095768, 7619710, 15239420, 30478840]

約数ペア:

[(1, 30478840), (2, 15239420), (4, 7619710), (5, 6095768), (7, 4354120), (8, 3809855), (10, 3047884), (14, 2177060), (20, 1523942), (28, 1088530), (35, 870824), (40, 761971), (56, 544265), (70, 435412), (140, 217706), (199, 153160), (280, 108853), (398, 76580), (547, 55720), (796, 38290), (995, 30632), (1094, 27860), (1393, 21880), (1592, 19145), (1990, 15316), (2188, 13930), (2735, 11144), (2786, 10940), (3829, 7960), (3980, 7658), (4376, 6965), (5470, 5572)]