19394180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{769}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 44370480

約数和(自身を除く): 24976300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 769, 970, 1261, 1538, 1940, 2522, 3076, 3845, 5044, 6305, 7690, 9997, 12610, 15380, 19994, 25220, 39988, 49985, 74593, 99970, 149186, 199940, 298372, 372965, 745930, 969709, 1491860, 1939418, 3878836, 4848545, 9697090, 19394180]

約数ペア:

[(1, 19394180), (2, 9697090), (4, 4848545), (5, 3878836), (10, 1939418), (13, 1491860), (20, 969709), (26, 745930), (52, 372965), (65, 298372), (97, 199940), (130, 149186), (194, 99970), (260, 74593), (388, 49985), (485, 39988), (769, 25220), (970, 19994), (1261, 15380), (1538, 12610), (1940, 9997), (2522, 7690), (3076, 6305), (3845, 5044)]