238971140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:924

約数の個数: 48

約数和(自身を含む): 510384000

約数和(自身を除く): 271412860

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 199, 388, 398, 485, 619, 796, 970, 995, 1238, 1940, 1990, 2476, 3095, 3980, 6190, 12380, 19303, 38606, 60043, 77212, 96515, 120086, 123181, 193030, 240172, 246362, 300215, 386060, 492724, 600430, 615905, 1200860, 1231810, 2463620, 11948557, 23897114, 47794228, 59742785, 119485570, 238971140]

約数ペア:

[(1, 238971140), (2, 119485570), (4, 59742785), (5, 47794228), (10, 23897114), (20, 11948557), (97, 2463620), (194, 1231810), (199, 1200860), (388, 615905), (398, 600430), (485, 492724), (619, 386060), (796, 300215), (970, 246362), (995, 240172), (1238, 193030), (1940, 123181), (1990, 120086), (2476, 96515), (3095, 77212), (3980, 60043), (6190, 38606), (12380, 19303)]