1989942400

素因数分解:

$2^7\times 5^2\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:303

約数の個数: 192

約数和(自身を含む): 5108780160

約数和(自身を除く): 3118837760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 64, 80, 94, 100, 101, 128, 131, 160, 188, 200, 202, 235, 262, 320, 376, 400, 404, 470, 505, 524, 640, 655, 752, 800, 808, 940, 1010, 1048, 1175, 1310, 1504, 1600, 1616, 1880, 2020, 2096, 2350, 2525, 2620, 3008, 3200, 3232, 3275, 3760, 4040, 4192, 4700, 4747, 5050, 5240, 6016, 6157, 6464, 6550, 7520, 8080, 8384, 9400, 9494, 10100, 10480, 12314, 12928, 13100, 13231, 15040, 16160, 16768, 18800, 18988, 20200, 20960, 23735, 24628, 26200, 26462, 30080, 30785, 32320, 37600, 37976, 40400, 41920, 47470, 49256, 52400, 52924, 61570, 64640, 66155, 75200, 75952, 80800, 83840, 94940, 98512, 104800, 105848, 118675, 123140, 132310, 150400, 151904, 153925, 161600, 189880, 197024, 209600, 211696, 237350, 246280, 264620, 303808, 307850, 323200, 330775, 379760, 394048, 419200, 423392, 474700, 492560, 529240, 607616, 615700, 621857, 661550, 759520, 788096, 846784, 949400, 985120, 1058480, 1231400, 1243714, 1323100, 1519040, 1693568, 1898800, 1970240, 2116960, 2462800, 2487428, 2646200, 3038080, 3109285, 3797600, 3940480, 4233920, 4925600, 4974856, 5292400, 6218570, 7595200, 8467840, 9851200, 9949712, 10584800, 12437140, 15190400, 15546425, 19702400, 19899424, 21169600, 24874280, 31092850, 39798848, 42339200, 49748560, 62185700, 79597696, 99497120, 124371400, 198994240, 248742800, 397988480, 497485600, 994971200, 1989942400]

約数ペア:

[(1, 1989942400), (2, 994971200), (4, 497485600), (5, 397988480), (8, 248742800), (10, 198994240), (16, 124371400), (20, 99497120), (25, 79597696), (32, 62185700), (40, 49748560), (47, 42339200), (50, 39798848), (64, 31092850), (80, 24874280), (94, 21169600), (100, 19899424), (101, 19702400), (128, 15546425), (131, 15190400), (160, 12437140), (188, 10584800), (200, 9949712), (202, 9851200), (235, 8467840), (262, 7595200), (320, 6218570), (376, 5292400), (400, 4974856), (404, 4925600), (470, 4233920), (505, 3940480), (524, 3797600), (640, 3109285), (655, 3038080), (752, 2646200), (800, 2487428), (808, 2462800), (940, 2116960), (1010, 1970240), (1048, 1898800), (1175, 1693568), (1310, 1519040), (1504, 1323100), (1600, 1243714), (1616, 1231400), (1880, 1058480), (2020, 985120), (2096, 949400), (2350, 846784), (2525, 788096), (2620, 759520), (3008, 661550), (3200, 621857), (3232, 615700), (3275, 607616), (3760, 529240), (4040, 492560), (4192, 474700), (4700, 423392), (4747, 419200), (5050, 394048), (5240, 379760), (6016, 330775), (6157, 323200), (6464, 307850), (6550, 303808), (7520, 264620), (8080, 246280), (8384, 237350), (9400, 211696), (9494, 209600), (10100, 197024), (10480, 189880), (12314, 161600), (12928, 153925), (13100, 151904), (13231, 150400), (15040, 132310), (16160, 123140), (16768, 118675), (18800, 105848), (18988, 104800), (20200, 98512), (20960, 94940), (23735, 83840), (24628, 80800), (26200, 75952), (26462, 75200), (30080, 66155), (30785, 64640), (32320, 61570), (37600, 52924), (37976, 52400), (40400, 49256), (41920, 47470)]