131374880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1289}}^1$

素因数の和:1331

約数の個数: 144

約数和(自身を含む): 389120760

約数和(自身を除く): 257745880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1120, 1274, 1289, 1456, 1568, 1820, 1960, 2080, 2548, 2578, 2912, 3185, 3640, 3920, 5096, 5156, 6370, 6445, 7280, 7840, 9023, 10192, 10312, 12740, 12890, 14560, 16757, 18046, 20384, 20624, 25480, 25780, 33514, 36092, 41248, 45115, 50960, 51560, 63161, 67028, 72184, 83785, 90230, 101920, 103120, 117299, 126322, 134056, 144368, 167570, 180460, 206240, 234598, 252644, 268112, 288736, 315805, 335140, 360920, 469196, 505288, 536224, 586495, 631610, 670280, 721840, 821093, 938392, 1010576, 1172990, 1263220, 1340560, 1443680, 1642186, 1876784, 2021152, 2345980, 2526440, 2681120, 3284372, 3753568, 4105465, 4691960, 5052880, 6568744, 8210930, 9383920, 10105760, 13137488, 16421860, 18767840, 26274976, 32843720, 65687440, 131374880]

約数ペア:

[(1, 131374880), (2, 65687440), (4, 32843720), (5, 26274976), (7, 18767840), (8, 16421860), (10, 13137488), (13, 10105760), (14, 9383920), (16, 8210930), (20, 6568744), (26, 5052880), (28, 4691960), (32, 4105465), (35, 3753568), (40, 3284372), (49, 2681120), (52, 2526440), (56, 2345980), (65, 2021152), (70, 1876784), (80, 1642186), (91, 1443680), (98, 1340560), (104, 1263220), (112, 1172990), (130, 1010576), (140, 938392), (160, 821093), (182, 721840), (196, 670280), (208, 631610), (224, 586495), (245, 536224), (260, 505288), (280, 469196), (364, 360920), (392, 335140), (416, 315805), (455, 288736), (490, 268112), (520, 252644), (560, 234598), (637, 206240), (728, 180460), (784, 167570), (910, 144368), (980, 134056), (1040, 126322), (1120, 117299), (1274, 103120), (1289, 101920), (1456, 90230), (1568, 83785), (1820, 72184), (1960, 67028), (2080, 63161), (2548, 51560), (2578, 50960), (2912, 45115), (3185, 41248), (3640, 36092), (3920, 33514), (5096, 25780), (5156, 25480), (6370, 20624), (6445, 20384), (7280, 18046), (7840, 16757), (9023, 14560), (10192, 12890), (10312, 12740)]