81612580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:733

約数の個数: 96

約数和(自身を含む): 211631616

約数和(自身を除く): 130019036

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 53, 68, 70, 85, 106, 119, 140, 170, 212, 238, 265, 340, 371, 476, 530, 595, 647, 742, 901, 1060, 1190, 1294, 1484, 1802, 1855, 2380, 2588, 3235, 3604, 3710, 4505, 4529, 6307, 6470, 7420, 9010, 9058, 10999, 12614, 12940, 18020, 18116, 21998, 22645, 25228, 31535, 34291, 43996, 45290, 54995, 63070, 68582, 76993, 90580, 109990, 126140, 137164, 153986, 171455, 219980, 240037, 307972, 342910, 384965, 480074, 582947, 685820, 769930, 960148, 1165894, 1200185, 1539860, 2331788, 2400370, 2914735, 4080629, 4800740, 5829470, 8161258, 11658940, 16322516, 20403145, 40806290, 81612580]

約数ペア:

[(1, 81612580), (2, 40806290), (4, 20403145), (5, 16322516), (7, 11658940), (10, 8161258), (14, 5829470), (17, 4800740), (20, 4080629), (28, 2914735), (34, 2400370), (35, 2331788), (53, 1539860), (68, 1200185), (70, 1165894), (85, 960148), (106, 769930), (119, 685820), (140, 582947), (170, 480074), (212, 384965), (238, 342910), (265, 307972), (340, 240037), (371, 219980), (476, 171455), (530, 153986), (595, 137164), (647, 126140), (742, 109990), (901, 90580), (1060, 76993), (1190, 68582), (1294, 63070), (1484, 54995), (1802, 45290), (1855, 43996), (2380, 34291), (2588, 31535), (3235, 25228), (3604, 22645), (3710, 21998), (4505, 18116), (4529, 18020), (6307, 12940), (6470, 12614), (7420, 10999), (9010, 9058)]