19831280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5059}}^1$

素因数の和:5086

約数の個数: 60

約数和(自身を含む): 53646120

約数和(自身を除く): 33814840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 5059, 10118, 20236, 25295, 35413, 40472, 50590, 70826, 80944, 101180, 141652, 177065, 202360, 247891, 283304, 354130, 404720, 495782, 566608, 708260, 991564, 1239455, 1416520, 1983128, 2478910, 2833040, 3966256, 4957820, 9915640, 19831280]

約数ペア:

[(1, 19831280), (2, 9915640), (4, 4957820), (5, 3966256), (7, 2833040), (8, 2478910), (10, 1983128), (14, 1416520), (16, 1239455), (20, 991564), (28, 708260), (35, 566608), (40, 495782), (49, 404720), (56, 354130), (70, 283304), (80, 247891), (98, 202360), (112, 177065), (140, 141652), (196, 101180), (245, 80944), (280, 70826), (392, 50590), (490, 40472), (560, 35413), (784, 25295), (980, 20236), (1960, 10118), (3920, 5059)]