320880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 1142784

約数和(自身を除く): 821904

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 191, 210, 240, 280, 336, 382, 420, 560, 573, 764, 840, 955, 1146, 1337, 1528, 1680, 1910, 2292, 2674, 2865, 3056, 3820, 4011, 4584, 5348, 5730, 6685, 7640, 8022, 9168, 10696, 11460, 13370, 15280, 16044, 20055, 21392, 22920, 26740, 32088, 40110, 45840, 53480, 64176, 80220, 106960, 160440, 320880]

約数ペア:

[(1, 320880), (2, 160440), (3, 106960), (4, 80220), (5, 64176), (6, 53480), (7, 45840), (8, 40110), (10, 32088), (12, 26740), (14, 22920), (15, 21392), (16, 20055), (20, 16044), (21, 15280), (24, 13370), (28, 11460), (30, 10696), (35, 9168), (40, 8022), (42, 7640), (48, 6685), (56, 5730), (60, 5348), (70, 4584), (80, 4011), (84, 3820), (105, 3056), (112, 2865), (120, 2674), (140, 2292), (168, 1910), (191, 1680), (210, 1528), (240, 1337), (280, 1146), (336, 955), (382, 840), (420, 764), (560, 573)]