19931140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 46543896

約数和(自身を除く): 26612756

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 61, 62, 68, 85, 122, 124, 155, 170, 244, 305, 310, 340, 527, 610, 620, 961, 1037, 1054, 1220, 1891, 1922, 2074, 2108, 2635, 3782, 3844, 4148, 4805, 5185, 5270, 7564, 9455, 9610, 10370, 10540, 16337, 18910, 19220, 20740, 32147, 32674, 37820, 58621, 64294, 65348, 81685, 117242, 128588, 160735, 163370, 234484, 293105, 321470, 326740, 586210, 642940, 996557, 1172420, 1993114, 3986228, 4982785, 9965570, 19931140]

約数ペア:

[(1, 19931140), (2, 9965570), (4, 4982785), (5, 3986228), (10, 1993114), (17, 1172420), (20, 996557), (31, 642940), (34, 586210), (61, 326740), (62, 321470), (68, 293105), (85, 234484), (122, 163370), (124, 160735), (155, 128588), (170, 117242), (244, 81685), (305, 65348), (310, 64294), (340, 58621), (527, 37820), (610, 32674), (620, 32147), (961, 20740), (1037, 19220), (1054, 18910), (1220, 16337), (1891, 10540), (1922, 10370), (2074, 9610), (2108, 9455), (2635, 7564), (3782, 5270), (3844, 5185), (4148, 4805)]