1661589720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{219787}}^1$

素因数の和:219814

約数の個数: 128

約数和(自身を含む): 6329894400

約数和(自身を除く): 4668304680

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, 219787, 439574, 659361, 879148, 1098935, 1318722, 1538509, 1758296, 1978083, 2197870, 2637444, 3077018, 3296805, 3956166, 4395740, 4615527, 5274888, 5934249, 6154036, 6593610, 7692545, 7912332, 8791480, 9231054, 9890415, 11868498, 12308072, 13187220, 13846581, 15385090, 15824664, 18462108, 19780830, 23077635, 23736996, 26374440, 27693162, 29671245, 30770180, 36924216, 39561660, 41539743, 46155270, 47473992, 55386324, 59342490, 61540360, 69232905, 79123320, 83079486, 92310540, 110772648, 118684980, 138465810, 166158972, 184621080, 207698715, 237369960, 276931620, 332317944, 415397430, 553863240, 830794860, 1661589720]

約数ペア:

[(1, 1661589720), (2, 830794860), (3, 553863240), (4, 415397430), (5, 332317944), (6, 276931620), (7, 237369960), (8, 207698715), (9, 184621080), (10, 166158972), (12, 138465810), (14, 118684980), (15, 110772648), (18, 92310540), (20, 83079486), (21, 79123320), (24, 69232905), (27, 61540360), (28, 59342490), (30, 55386324), (35, 47473992), (36, 46155270), (40, 41539743), (42, 39561660), (45, 36924216), (54, 30770180), (56, 29671245), (60, 27693162), (63, 26374440), (70, 23736996), (72, 23077635), (84, 19780830), (90, 18462108), (105, 15824664), (108, 15385090), (120, 13846581), (126, 13187220), (135, 12308072), (140, 11868498), (168, 9890415), (180, 9231054), (189, 8791480), (210, 7912332), (216, 7692545), (252, 6593610), (270, 6154036), (280, 5934249), (315, 5274888), (360, 4615527), (378, 4395740), (420, 3956166), (504, 3296805), (540, 3077018), (630, 2637444), (756, 2197870), (840, 1978083), (945, 1758296), (1080, 1538509), (1260, 1318722), (1512, 1098935), (1890, 879148), (2520, 659361), (3780, 439574), (7560, 219787)]