208416720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 160

約数和(自身を含む): 675671040

約数和(自身を除く): 467254320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 109, 120, 124, 155, 186, 218, 240, 248, 257, 310, 327, 372, 436, 465, 496, 514, 545, 620, 654, 744, 771, 872, 930, 1028, 1090, 1240, 1285, 1308, 1488, 1542, 1635, 1744, 1860, 2056, 2180, 2480, 2570, 2616, 3084, 3270, 3379, 3720, 3855, 4112, 4360, 5140, 5232, 6168, 6540, 6758, 7440, 7710, 7967, 8720, 10137, 10280, 12336, 13080, 13516, 15420, 15934, 16895, 20274, 20560, 23901, 26160, 27032, 28013, 30840, 31868, 33790, 39835, 40548, 47802, 50685, 54064, 56026, 61680, 63736, 67580, 79670, 81096, 84039, 95604, 101370, 112052, 119505, 127472, 135160, 140065, 159340, 162192, 168078, 191208, 202740, 224104, 239010, 270320, 280130, 318680, 336156, 382416, 405480, 420195, 448208, 478020, 560260, 637360, 672312, 810960, 840390, 868403, 956040, 1120520, 1344624, 1680780, 1736806, 1912080, 2241040, 2605209, 3361560, 3473612, 4342015, 5210418, 6723120, 6947224, 8684030, 10420836, 13026045, 13894448, 17368060, 20841672, 26052090, 34736120, 41683344, 52104180, 69472240, 104208360, 208416720]

約数ペア:

[(1, 208416720), (2, 104208360), (3, 69472240), (4, 52104180), (5, 41683344), (6, 34736120), (8, 26052090), (10, 20841672), (12, 17368060), (15, 13894448), (16, 13026045), (20, 10420836), (24, 8684030), (30, 6947224), (31, 6723120), (40, 5210418), (48, 4342015), (60, 3473612), (62, 3361560), (80, 2605209), (93, 2241040), (109, 1912080), (120, 1736806), (124, 1680780), (155, 1344624), (186, 1120520), (218, 956040), (240, 868403), (248, 840390), (257, 810960), (310, 672312), (327, 637360), (372, 560260), (436, 478020), (465, 448208), (496, 420195), (514, 405480), (545, 382416), (620, 336156), (654, 318680), (744, 280130), (771, 270320), (872, 239010), (930, 224104), (1028, 202740), (1090, 191208), (1240, 168078), (1285, 162192), (1308, 159340), (1488, 140065), (1542, 135160), (1635, 127472), (1744, 119505), (1860, 112052), (2056, 101370), (2180, 95604), (2480, 84039), (2570, 81096), (2616, 79670), (3084, 67580), (3270, 63736), (3379, 61680), (3720, 56026), (3855, 54064), (4112, 50685), (4360, 47802), (5140, 40548), (5232, 39835), (6168, 33790), (6540, 31868), (6758, 30840), (7440, 28013), (7710, 27032), (7967, 26160), (8720, 23901), (10137, 20560), (10280, 20274), (12336, 16895), (13080, 15934), (13516, 15420)]