320503920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{121403}}^1$

素因数の和:121430

約数の個数: 80

約数和(自身を含む): 1083894912

約数和(自身を除く): 763390992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 121403, 242806, 364209, 485612, 607015, 728418, 971224, 1214030, 1335433, 1456836, 1821045, 1942448, 2428060, 2670866, 2913672, 3642090, 4006299, 4856120, 5341732, 5827344, 6677165, 7284180, 8012598, 9712240, 10683464, 13354330, 14568360, 16025196, 20031495, 21366928, 26708660, 29136720, 32050392, 40062990, 53417320, 64100784, 80125980, 106834640, 160251960, 320503920]

約数ペア:

[(1, 320503920), (2, 160251960), (3, 106834640), (4, 80125980), (5, 64100784), (6, 53417320), (8, 40062990), (10, 32050392), (11, 29136720), (12, 26708660), (15, 21366928), (16, 20031495), (20, 16025196), (22, 14568360), (24, 13354330), (30, 10683464), (33, 9712240), (40, 8012598), (44, 7284180), (48, 6677165), (55, 5827344), (60, 5341732), (66, 4856120), (80, 4006299), (88, 3642090), (110, 2913672), (120, 2670866), (132, 2428060), (165, 1942448), (176, 1821045), (220, 1456836), (240, 1335433), (264, 1214030), (330, 971224), (440, 728418), (528, 607015), (660, 485612), (880, 364209), (1320, 242806), (2640, 121403)]