661628520

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{87517}}^1$

素因数の和:87544

約数の個数: 128

約数和(自身を含む): 2520518400

約数和(自身を除く): 1858889880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 87517, 175034, 262551, 350068, 437585, 525102, 612619, 700136, 787653, 875170, 1050204, 1225238, 1312755, 1575306, 1750340, 1837857, 2100408, 2362959, 2450476, 2625510, 3063095, 3150612, 3500680, 3675714, 3938265, 4725918, 4900952, 5251020, 5513571, 6126190, 6301224, 7351428, 7876530, 9189285, 9451836, 10502040, 11027142, 11814795, 12252380, 14702856, 15753060, 16540713, 18378570, 18903672, 22054284, 23629590, 24504760, 27567855, 31506120, 33081426, 36757140, 44108568, 47259180, 55135710, 66162852, 73514280, 82703565, 94518360, 110271420, 132325704, 165407130, 220542840, 330814260, 661628520]

約数ペア:

[(1, 661628520), (2, 330814260), (3, 220542840), (4, 165407130), (5, 132325704), (6, 110271420), (7, 94518360), (8, 82703565), (9, 73514280), (10, 66162852), (12, 55135710), (14, 47259180), (15, 44108568), (18, 36757140), (20, 33081426), (21, 31506120), (24, 27567855), (27, 24504760), (28, 23629590), (30, 22054284), (35, 18903672), (36, 18378570), (40, 16540713), (42, 15753060), (45, 14702856), (54, 12252380), (56, 11814795), (60, 11027142), (63, 10502040), (70, 9451836), (72, 9189285), (84, 7876530), (90, 7351428), (105, 6301224), (108, 6126190), (120, 5513571), (126, 5251020), (135, 4900952), (140, 4725918), (168, 3938265), (180, 3675714), (189, 3500680), (210, 3150612), (216, 3063095), (252, 2625510), (270, 2450476), (280, 2362959), (315, 2100408), (360, 1837857), (378, 1750340), (420, 1575306), (504, 1312755), (540, 1225238), (630, 1050204), (756, 875170), (840, 787653), (945, 700136), (1080, 612619), (1260, 525102), (1512, 437585), (1890, 350068), (2520, 262551), (3780, 175034), (7560, 87517)]