25097800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 73471860

約数和(自身を除く): 48374060

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 91, 98, 100, 104, 130, 140, 175, 182, 196, 197, 200, 245, 260, 280, 325, 350, 364, 392, 394, 455, 490, 520, 637, 650, 700, 728, 788, 910, 980, 985, 1225, 1274, 1300, 1379, 1400, 1576, 1820, 1960, 1970, 2275, 2450, 2548, 2561, 2600, 2758, 3185, 3640, 3940, 4550, 4900, 4925, 5096, 5122, 5516, 6370, 6895, 7880, 9100, 9653, 9800, 9850, 10244, 11032, 12740, 12805, 13790, 15925, 17927, 18200, 19306, 19700, 20488, 25480, 25610, 27580, 31850, 34475, 35854, 38612, 39400, 48265, 51220, 55160, 63700, 64025, 68950, 71708, 77224, 89635, 96530, 102440, 125489, 127400, 128050, 137900, 143416, 179270, 193060, 241325, 250978, 256100, 275800, 358540, 386120, 448175, 482650, 501956, 512200, 627445, 717080, 896350, 965300, 1003912, 1254890, 1792700, 1930600, 2509780, 3137225, 3585400, 5019560, 6274450, 12548900, 25097800]

約数ペア:

[(1, 25097800), (2, 12548900), (4, 6274450), (5, 5019560), (7, 3585400), (8, 3137225), (10, 2509780), (13, 1930600), (14, 1792700), (20, 1254890), (25, 1003912), (26, 965300), (28, 896350), (35, 717080), (40, 627445), (49, 512200), (50, 501956), (52, 482650), (56, 448175), (65, 386120), (70, 358540), (91, 275800), (98, 256100), (100, 250978), (104, 241325), (130, 193060), (140, 179270), (175, 143416), (182, 137900), (196, 128050), (197, 127400), (200, 125489), (245, 102440), (260, 96530), (280, 89635), (325, 77224), (350, 71708), (364, 68950), (392, 64025), (394, 63700), (455, 55160), (490, 51220), (520, 48265), (637, 39400), (650, 38612), (700, 35854), (728, 34475), (788, 31850), (910, 27580), (980, 25610), (985, 25480), (1225, 20488), (1274, 19700), (1300, 19306), (1379, 18200), (1400, 17927), (1576, 15925), (1820, 13790), (1960, 12805), (1970, 12740), (2275, 11032), (2450, 10244), (2548, 9850), (2561, 9800), (2600, 9653), (2758, 9100), (3185, 7880), (3640, 6895), (3940, 6370), (4550, 5516), (4900, 5122), (4925, 5096)]