20920472

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{773}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 41796000

約数和(自身を除く): 20875528

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 199, 398, 773, 796, 1546, 1592, 3092, 3383, 6184, 6766, 13141, 13532, 26282, 27064, 52564, 105128, 153827, 307654, 615308, 1230616, 2615059, 5230118, 10460236, 20920472]

約数ペア:

[(1, 20920472), (2, 10460236), (4, 5230118), (8, 2615059), (17, 1230616), (34, 615308), (68, 307654), (136, 153827), (199, 105128), (398, 52564), (773, 27064), (796, 26282), (1546, 13532), (1592, 13141), (3092, 6766), (3383, 6184)]