381936880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{829}}^1$

素因数の和:1298

約数の個数: 80

約数和(自身を含む): 959626080

約数和(自身を除く): 577689200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 443, 520, 829, 886, 1040, 1658, 1772, 2215, 3316, 3544, 4145, 4430, 5759, 6632, 7088, 8290, 8860, 10777, 11518, 13264, 16580, 17720, 21554, 23036, 28795, 33160, 35440, 43108, 46072, 53885, 57590, 66320, 86216, 92144, 107770, 115180, 172432, 215540, 230360, 367247, 431080, 460720, 734494, 862160, 1468988, 1836235, 2937976, 3672470, 4774211, 5875952, 7344940, 9548422, 14689880, 19096844, 23871055, 29379760, 38193688, 47742110, 76387376, 95484220, 190968440, 381936880]

約数ペア:

[(1, 381936880), (2, 190968440), (4, 95484220), (5, 76387376), (8, 47742110), (10, 38193688), (13, 29379760), (16, 23871055), (20, 19096844), (26, 14689880), (40, 9548422), (52, 7344940), (65, 5875952), (80, 4774211), (104, 3672470), (130, 2937976), (208, 1836235), (260, 1468988), (443, 862160), (520, 734494), (829, 460720), (886, 431080), (1040, 367247), (1658, 230360), (1772, 215540), (2215, 172432), (3316, 115180), (3544, 107770), (4145, 92144), (4430, 86216), (5759, 66320), (6632, 57590), (7088, 53885), (8290, 46072), (8860, 43108), (10777, 35440), (11518, 33160), (13264, 28795), (16580, 23036), (17720, 21554)]