15661780820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{659}}^1\times {\mathrm{24251}}^1$

素因数の和:24933

約数の個数: 72

約数和(自身を含む): 38319130080

約数和(自身を除く): 22657349260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 659, 980, 1318, 2636, 3295, 4613, 6590, 9226, 13180, 18452, 23065, 24251, 32291, 46130, 48502, 64582, 92260, 97004, 121255, 129164, 161455, 169757, 242510, 322910, 339514, 485020, 645820, 679028, 848785, 1188299, 1697570, 2376598, 3395140, 4753196, 5941495, 11882990, 15981409, 23765980, 31962818, 63925636, 79907045, 111869863, 159814090, 223739726, 319628180, 447479452, 559349315, 783089041, 1118698630, 1566178082, 2237397260, 3132356164, 3915445205, 7830890410, 15661780820]

約数ペア:

[(1, 15661780820), (2, 7830890410), (4, 3915445205), (5, 3132356164), (7, 2237397260), (10, 1566178082), (14, 1118698630), (20, 783089041), (28, 559349315), (35, 447479452), (49, 319628180), (70, 223739726), (98, 159814090), (140, 111869863), (196, 79907045), (245, 63925636), (490, 31962818), (659, 23765980), (980, 15981409), (1318, 11882990), (2636, 5941495), (3295, 4753196), (4613, 3395140), (6590, 2376598), (9226, 1697570), (13180, 1188299), (18452, 848785), (23065, 679028), (24251, 645820), (32291, 485020), (46130, 339514), (48502, 322910), (64582, 242510), (92260, 169757), (97004, 161455), (121255, 129164)]