19856880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:368

約数の個数: 160

約数和(自身を含む): 70977600

約数和(自身を除く): 51120720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 108, 116, 120, 135, 144, 145, 174, 180, 216, 232, 240, 261, 270, 290, 317, 348, 360, 432, 435, 464, 522, 540, 580, 634, 696, 720, 783, 870, 951, 1044, 1080, 1160, 1268, 1305, 1392, 1566, 1585, 1740, 1902, 2088, 2160, 2320, 2536, 2610, 2853, 3132, 3170, 3480, 3804, 3915, 4176, 4755, 5072, 5220, 5706, 6264, 6340, 6960, 7608, 7830, 8559, 9193, 9510, 10440, 11412, 12528, 12680, 14265, 15216, 15660, 17118, 18386, 19020, 20880, 22824, 25360, 27579, 28530, 31320, 34236, 36772, 38040, 42795, 45648, 45965, 55158, 57060, 62640, 68472, 73544, 76080, 82737, 85590, 91930, 110316, 114120, 136944, 137895, 147088, 165474, 171180, 183860, 220632, 228240, 248211, 275790, 330948, 342360, 367720, 413685, 441264, 496422, 551580, 661896, 684720, 735440, 827370, 992844, 1103160, 1241055, 1323792, 1654740, 1985688, 2206320, 2482110, 3309480, 3971376, 4964220, 6618960, 9928440, 19856880]

約数ペア:

[(1, 19856880), (2, 9928440), (3, 6618960), (4, 4964220), (5, 3971376), (6, 3309480), (8, 2482110), (9, 2206320), (10, 1985688), (12, 1654740), (15, 1323792), (16, 1241055), (18, 1103160), (20, 992844), (24, 827370), (27, 735440), (29, 684720), (30, 661896), (36, 551580), (40, 496422), (45, 441264), (48, 413685), (54, 367720), (58, 342360), (60, 330948), (72, 275790), (80, 248211), (87, 228240), (90, 220632), (108, 183860), (116, 171180), (120, 165474), (135, 147088), (144, 137895), (145, 136944), (174, 114120), (180, 110316), (216, 91930), (232, 85590), (240, 82737), (261, 76080), (270, 73544), (290, 68472), (317, 62640), (348, 57060), (360, 55158), (432, 45965), (435, 45648), (464, 42795), (522, 38040), (540, 36772), (580, 34236), (634, 31320), (696, 28530), (720, 27579), (783, 25360), (870, 22824), (951, 20880), (1044, 19020), (1080, 18386), (1160, 17118), (1268, 15660), (1305, 15216), (1392, 14265), (1566, 12680), (1585, 12528), (1740, 11412), (1902, 10440), (2088, 9510), (2160, 9193), (2320, 8559), (2536, 7830), (2610, 7608), (2853, 6960), (3132, 6340), (3170, 6264), (3480, 5706), (3804, 5220), (3915, 5072), (4176, 4755)]