209968120

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{317}}^1\times {\mathrm{571}}^1$

素因数の和:928

約数の個数: 64

約数和(自身を含む): 491119200

約数和(自身を除く): 281151080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 317, 571, 580, 634, 1142, 1160, 1268, 1585, 2284, 2536, 2855, 3170, 4568, 5710, 6340, 9193, 11420, 12680, 16559, 18386, 22840, 33118, 36772, 45965, 66236, 73544, 82795, 91930, 132472, 165590, 181007, 183860, 331180, 362014, 367720, 662360, 724028, 905035, 1448056, 1810070, 3620140, 5249203, 7240280, 10498406, 20996812, 26246015, 41993624, 52492030, 104984060, 209968120]

約数ペア:

[(1, 209968120), (2, 104984060), (4, 52492030), (5, 41993624), (8, 26246015), (10, 20996812), (20, 10498406), (29, 7240280), (40, 5249203), (58, 3620140), (116, 1810070), (145, 1448056), (232, 905035), (290, 724028), (317, 662360), (571, 367720), (580, 362014), (634, 331180), (1142, 183860), (1160, 181007), (1268, 165590), (1585, 132472), (2284, 91930), (2536, 82795), (2855, 73544), (3170, 66236), (4568, 45965), (5710, 36772), (6340, 33118), (9193, 22840), (11420, 18386), (12680, 16559)]