65385980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{659}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 154843920

約数和(自身を除く): 89457940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 121, 164, 205, 220, 242, 410, 451, 484, 605, 659, 820, 902, 1210, 1318, 1804, 2255, 2420, 2636, 3295, 4510, 4961, 6590, 7249, 9020, 9922, 13180, 14498, 19844, 24805, 27019, 28996, 36245, 49610, 54038, 72490, 79739, 99220, 108076, 135095, 144980, 159478, 270190, 297209, 318956, 398695, 540380, 594418, 797390, 1188836, 1486045, 1594780, 2972090, 3269299, 5944180, 6538598, 13077196, 16346495, 32692990, 65385980]

約数ペア:

[(1, 65385980), (2, 32692990), (4, 16346495), (5, 13077196), (10, 6538598), (11, 5944180), (20, 3269299), (22, 2972090), (41, 1594780), (44, 1486045), (55, 1188836), (82, 797390), (110, 594418), (121, 540380), (164, 398695), (205, 318956), (220, 297209), (242, 270190), (410, 159478), (451, 144980), (484, 135095), (605, 108076), (659, 99220), (820, 79739), (902, 72490), (1210, 54038), (1318, 49610), (1804, 36245), (2255, 28996), (2420, 27019), (2636, 24805), (3295, 19844), (4510, 14498), (4961, 13180), (6590, 9922), (7249, 9020)]