71971900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1$

素因数の和:764

約数の個数: 144

約数和(自身を含む): 209986560

約数和(自身を除く): 138014660

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 44, 50, 52, 55, 65, 70, 77, 91, 100, 110, 130, 140, 143, 154, 175, 182, 220, 260, 275, 286, 308, 325, 350, 364, 385, 455, 550, 572, 650, 700, 715, 719, 770, 910, 1001, 1100, 1300, 1430, 1438, 1540, 1820, 1925, 2002, 2275, 2860, 2876, 3575, 3595, 3850, 4004, 4550, 5005, 5033, 7150, 7190, 7700, 7909, 9100, 9347, 10010, 10066, 14300, 14380, 15818, 17975, 18694, 20020, 20132, 25025, 25165, 31636, 35950, 37388, 39545, 46735, 50050, 50330, 55363, 65429, 71900, 79090, 93470, 100100, 100660, 102817, 110726, 125825, 130858, 158180, 186940, 197725, 205634, 221452, 233675, 251650, 261716, 276815, 327145, 395450, 411268, 467350, 503300, 514085, 553630, 654290, 719719, 790900, 934700, 1028170, 1107260, 1308580, 1384075, 1439438, 1635725, 2056340, 2570425, 2768150, 2878876, 3271450, 3598595, 5140850, 5536300, 6542900, 7197190, 10281700, 14394380, 17992975, 35985950, 71971900]

約数ペア:

[(1, 71971900), (2, 35985950), (4, 17992975), (5, 14394380), (7, 10281700), (10, 7197190), (11, 6542900), (13, 5536300), (14, 5140850), (20, 3598595), (22, 3271450), (25, 2878876), (26, 2768150), (28, 2570425), (35, 2056340), (44, 1635725), (50, 1439438), (52, 1384075), (55, 1308580), (65, 1107260), (70, 1028170), (77, 934700), (91, 790900), (100, 719719), (110, 654290), (130, 553630), (140, 514085), (143, 503300), (154, 467350), (175, 411268), (182, 395450), (220, 327145), (260, 276815), (275, 261716), (286, 251650), (308, 233675), (325, 221452), (350, 205634), (364, 197725), (385, 186940), (455, 158180), (550, 130858), (572, 125825), (650, 110726), (700, 102817), (715, 100660), (719, 100100), (770, 93470), (910, 79090), (1001, 71900), (1100, 65429), (1300, 55363), (1430, 50330), (1438, 50050), (1540, 46735), (1820, 39545), (1925, 37388), (2002, 35950), (2275, 31636), (2860, 25165), (2876, 25025), (3575, 20132), (3595, 20020), (3850, 18694), (4004, 17975), (4550, 15818), (5005, 14380), (5033, 14300), (7150, 10066), (7190, 10010), (7700, 9347), (7909, 9100)]