251531120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1303}}^1$

素因数の和:1462

約数の個数: 80

約数和(自身を含む): 620912640

約数和(自身を除く): 369381520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 127, 152, 190, 254, 304, 380, 508, 635, 760, 1016, 1270, 1303, 1520, 2032, 2413, 2540, 2606, 4826, 5080, 5212, 6515, 9652, 10160, 10424, 12065, 13030, 19304, 20848, 24130, 24757, 26060, 38608, 48260, 49514, 52120, 96520, 99028, 104240, 123785, 165481, 193040, 198056, 247570, 330962, 396112, 495140, 661924, 827405, 990280, 1323848, 1654810, 1980560, 2647696, 3144139, 3309620, 6288278, 6619240, 12576556, 13238480, 15720695, 25153112, 31441390, 50306224, 62882780, 125765560, 251531120]

約数ペア:

[(1, 251531120), (2, 125765560), (4, 62882780), (5, 50306224), (8, 31441390), (10, 25153112), (16, 15720695), (19, 13238480), (20, 12576556), (38, 6619240), (40, 6288278), (76, 3309620), (80, 3144139), (95, 2647696), (127, 1980560), (152, 1654810), (190, 1323848), (254, 990280), (304, 827405), (380, 661924), (508, 495140), (635, 396112), (760, 330962), (1016, 247570), (1270, 198056), (1303, 193040), (1520, 165481), (2032, 123785), (2413, 104240), (2540, 99028), (2606, 96520), (4826, 52120), (5080, 49514), (5212, 48260), (6515, 38608), (9652, 26060), (10160, 24757), (10424, 24130), (12065, 20848), (13030, 19304)]