71566160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:468

約数の個数: 80

約数和(自身を含む): 176774400

約数和(自身を除く): 105208240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 197, 239, 304, 380, 394, 478, 760, 788, 956, 985, 1195, 1520, 1576, 1912, 1970, 2390, 3152, 3743, 3824, 3940, 4541, 4780, 7486, 7880, 9082, 9560, 14972, 15760, 18164, 18715, 19120, 22705, 29944, 36328, 37430, 45410, 47083, 59888, 72656, 74860, 90820, 94166, 149720, 181640, 188332, 235415, 299440, 363280, 376664, 470830, 753328, 894577, 941660, 1789154, 1883320, 3578308, 3766640, 4472885, 7156616, 8945770, 14313232, 17891540, 35783080, 71566160]

約数ペア:

[(1, 71566160), (2, 35783080), (4, 17891540), (5, 14313232), (8, 8945770), (10, 7156616), (16, 4472885), (19, 3766640), (20, 3578308), (38, 1883320), (40, 1789154), (76, 941660), (80, 894577), (95, 753328), (152, 470830), (190, 376664), (197, 363280), (239, 299440), (304, 235415), (380, 188332), (394, 181640), (478, 149720), (760, 94166), (788, 90820), (956, 74860), (985, 72656), (1195, 59888), (1520, 47083), (1576, 45410), (1912, 37430), (1970, 36328), (2390, 29944), (3152, 22705), (3743, 19120), (3824, 18715), (3940, 18164), (4541, 15760), (4780, 14972), (7486, 9560), (7880, 9082)]