91431640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 212556960

約数和(自身を除く): 121125320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 197, 205, 283, 328, 394, 410, 566, 788, 820, 985, 1132, 1415, 1576, 1640, 1970, 2264, 2830, 3940, 5660, 7880, 8077, 11320, 11603, 16154, 23206, 32308, 40385, 46412, 55751, 58015, 64616, 80770, 92824, 111502, 116030, 161540, 223004, 232060, 278755, 323080, 446008, 464120, 557510, 1115020, 2230040, 2285791, 4571582, 9143164, 11428955, 18286328, 22857910, 45715820, 91431640]

約数ペア:

[(1, 91431640), (2, 45715820), (4, 22857910), (5, 18286328), (8, 11428955), (10, 9143164), (20, 4571582), (40, 2285791), (41, 2230040), (82, 1115020), (164, 557510), (197, 464120), (205, 446008), (283, 323080), (328, 278755), (394, 232060), (410, 223004), (566, 161540), (788, 116030), (820, 111502), (985, 92824), (1132, 80770), (1415, 64616), (1576, 58015), (1640, 55751), (1970, 46412), (2264, 40385), (2830, 32308), (3940, 23206), (5660, 16154), (7880, 11603), (8077, 11320)]