20356144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2309}}^1$

素因数の和:2365

約数の個数: 40

約数和(自身を含む): 42966000

約数和(自身を除く): 22609856

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2309, 4408, 4618, 8816, 9236, 18472, 36944, 43871, 66961, 87742, 133922, 175484, 267844, 350968, 535688, 701936, 1071376, 1272259, 2544518, 5089036, 10178072, 20356144]

約数ペア:

[(1, 20356144), (2, 10178072), (4, 5089036), (8, 2544518), (16, 1272259), (19, 1071376), (29, 701936), (38, 535688), (58, 350968), (76, 267844), (116, 175484), (152, 133922), (232, 87742), (304, 66961), (464, 43871), (551, 36944), (1102, 18472), (2204, 9236), (2309, 8816), (4408, 4618)]