209719980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{283}}^1$

素因数の和:500

約数の個数: 144

約数和(自身を含む): 669876480

約数和(自身を除く): 460156500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 179, 180, 207, 230, 276, 283, 345, 358, 414, 460, 537, 566, 690, 716, 828, 849, 895, 1035, 1074, 1132, 1380, 1415, 1611, 1698, 1790, 2070, 2148, 2547, 2685, 2830, 3222, 3396, 3580, 4117, 4140, 4245, 5094, 5370, 5660, 6444, 6509, 8055, 8234, 8490, 10188, 10740, 12351, 12735, 13018, 16110, 16468, 16980, 19527, 20585, 24702, 25470, 26036, 32220, 32545, 37053, 39054, 41170, 49404, 50657, 50940, 58581, 61755, 65090, 74106, 78108, 82340, 97635, 101314, 117162, 123510, 130180, 148212, 151971, 185265, 195270, 202628, 234324, 247020, 253285, 292905, 303942, 370530, 390540, 455913, 506570, 585810, 607884, 741060, 759855, 911826, 1013140, 1165111, 1171620, 1519710, 1823652, 2279565, 2330222, 3039420, 3495333, 4559130, 4660444, 5825555, 6990666, 9118260, 10485999, 11651110, 13981332, 17476665, 20971998, 23302220, 34953330, 41943996, 52429995, 69906660, 104859990, 209719980]

約数ペア:

[(1, 209719980), (2, 104859990), (3, 69906660), (4, 52429995), (5, 41943996), (6, 34953330), (9, 23302220), (10, 20971998), (12, 17476665), (15, 13981332), (18, 11651110), (20, 10485999), (23, 9118260), (30, 6990666), (36, 5825555), (45, 4660444), (46, 4559130), (60, 3495333), (69, 3039420), (90, 2330222), (92, 2279565), (115, 1823652), (138, 1519710), (179, 1171620), (180, 1165111), (207, 1013140), (230, 911826), (276, 759855), (283, 741060), (345, 607884), (358, 585810), (414, 506570), (460, 455913), (537, 390540), (566, 370530), (690, 303942), (716, 292905), (828, 253285), (849, 247020), (895, 234324), (1035, 202628), (1074, 195270), (1132, 185265), (1380, 151971), (1415, 148212), (1611, 130180), (1698, 123510), (1790, 117162), (2070, 101314), (2148, 97635), (2547, 82340), (2685, 78108), (2830, 74106), (3222, 65090), (3396, 61755), (3580, 58581), (4117, 50940), (4140, 50657), (4245, 49404), (5094, 41170), (5370, 39054), (5660, 37053), (6444, 32545), (6509, 32220), (8055, 26036), (8234, 25470), (8490, 24702), (10188, 20585), (10740, 19527), (12351, 16980), (12735, 16468), (13018, 16110)]