40338720

素因数分解:

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

素因数の和:387

約数の個数: 144

約数和(自身を含む): 139459320

約数和(自身を除く): 99120600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 109, 120, 144, 160, 180, 218, 240, 257, 288, 327, 360, 436, 480, 514, 545, 654, 720, 771, 872, 981, 1028, 1090, 1285, 1308, 1440, 1542, 1635, 1744, 1962, 2056, 2180, 2313, 2570, 2616, 3084, 3270, 3488, 3855, 3924, 4112, 4360, 4626, 4905, 5140, 5232, 6168, 6540, 7710, 7848, 8224, 8720, 9252, 9810, 10280, 10464, 11565, 12336, 13080, 15420, 15696, 17440, 18504, 19620, 20560, 23130, 24672, 26160, 28013, 30840, 31392, 37008, 39240, 41120, 46260, 52320, 56026, 61680, 74016, 78480, 84039, 92520, 112052, 123360, 140065, 156960, 168078, 185040, 224104, 252117, 280130, 336156, 370080, 420195, 448208, 504234, 560260, 672312, 840390, 896416, 1008468, 1120520, 1260585, 1344624, 1680780, 2016936, 2241040, 2521170, 2689248, 3361560, 4033872, 4482080, 5042340, 6723120, 8067744, 10084680, 13446240, 20169360, 40338720]

約数ペア:

[(1, 40338720), (2, 20169360), (3, 13446240), (4, 10084680), (5, 8067744), (6, 6723120), (8, 5042340), (9, 4482080), (10, 4033872), (12, 3361560), (15, 2689248), (16, 2521170), (18, 2241040), (20, 2016936), (24, 1680780), (30, 1344624), (32, 1260585), (36, 1120520), (40, 1008468), (45, 896416), (48, 840390), (60, 672312), (72, 560260), (80, 504234), (90, 448208), (96, 420195), (109, 370080), (120, 336156), (144, 280130), (160, 252117), (180, 224104), (218, 185040), (240, 168078), (257, 156960), (288, 140065), (327, 123360), (360, 112052), (436, 92520), (480, 84039), (514, 78480), (545, 74016), (654, 61680), (720, 56026), (771, 52320), (872, 46260), (981, 41120), (1028, 39240), (1090, 37008), (1285, 31392), (1308, 30840), (1440, 28013), (1542, 26160), (1635, 24672), (1744, 23130), (1962, 20560), (2056, 19620), (2180, 18504), (2313, 17440), (2570, 15696), (2616, 15420), (3084, 13080), (3270, 12336), (3488, 11565), (3855, 10464), (3924, 10280), (4112, 9810), (4360, 9252), (4626, 8720), (4905, 8224), (5140, 7848), (5232, 7710), (6168, 6540)]