20170800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:468

約数の個数: 180

約数和(自身を含む): 75557664

約数和(自身を除く): 55386864

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 30, 36, 39, 40, 45, 48, 50, 52, 60, 65, 72, 75, 78, 80, 90, 100, 104, 117, 120, 130, 144, 150, 156, 180, 195, 200, 208, 225, 234, 240, 260, 300, 312, 325, 360, 390, 400, 431, 450, 468, 520, 585, 600, 624, 650, 720, 780, 862, 900, 936, 975, 1040, 1170, 1200, 1293, 1300, 1560, 1724, 1800, 1872, 1950, 2155, 2340, 2586, 2600, 2925, 3120, 3448, 3600, 3879, 3900, 4310, 4680, 5172, 5200, 5603, 5850, 6465, 6896, 7758, 7800, 8620, 9360, 10344, 10775, 11206, 11700, 12930, 15516, 15600, 16809, 17240, 19395, 20688, 21550, 22412, 23400, 25860, 28015, 31032, 32325, 33618, 34480, 38790, 43100, 44824, 46800, 50427, 51720, 56030, 62064, 64650, 67236, 77580, 84045, 86200, 89648, 96975, 100854, 103440, 112060, 129300, 134472, 140075, 155160, 168090, 172400, 193950, 201708, 224120, 252135, 258600, 268944, 280150, 310320, 336180, 387900, 403416, 420225, 448240, 504270, 517200, 560300, 672360, 775800, 806832, 840450, 1008540, 1120600, 1260675, 1344720, 1551600, 1680900, 2017080, 2241200, 2521350, 3361800, 4034160, 5042700, 6723600, 10085400, 20170800]

約数ペア:

[(1, 20170800), (2, 10085400), (3, 6723600), (4, 5042700), (5, 4034160), (6, 3361800), (8, 2521350), (9, 2241200), (10, 2017080), (12, 1680900), (13, 1551600), (15, 1344720), (16, 1260675), (18, 1120600), (20, 1008540), (24, 840450), (25, 806832), (26, 775800), (30, 672360), (36, 560300), (39, 517200), (40, 504270), (45, 448240), (48, 420225), (50, 403416), (52, 387900), (60, 336180), (65, 310320), (72, 280150), (75, 268944), (78, 258600), (80, 252135), (90, 224120), (100, 201708), (104, 193950), (117, 172400), (120, 168090), (130, 155160), (144, 140075), (150, 134472), (156, 129300), (180, 112060), (195, 103440), (200, 100854), (208, 96975), (225, 89648), (234, 86200), (240, 84045), (260, 77580), (300, 67236), (312, 64650), (325, 62064), (360, 56030), (390, 51720), (400, 50427), (431, 46800), (450, 44824), (468, 43100), (520, 38790), (585, 34480), (600, 33618), (624, 32325), (650, 31032), (720, 28015), (780, 25860), (862, 23400), (900, 22412), (936, 21550), (975, 20688), (1040, 19395), (1170, 17240), (1200, 16809), (1293, 15600), (1300, 15516), (1560, 12930), (1724, 11700), (1800, 11206), (1872, 10775), (1950, 10344), (2155, 9360), (2340, 8620), (2586, 7800), (2600, 7758), (2925, 6896), (3120, 6465), (3448, 5850), (3600, 5603), (3879, 5200), (3900, 5172), (4310, 4680)]