399383762

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1\times {\mathrm{439}}^1$

素因数の和:818

約数の個数: 32

約数和(自身を含む): 641520000

約数和(自身を除く): 242136238

約数列:

[1, 2, 19, 38, 89, 178, 269, 439, 538, 878, 1691, 3382, 5111, 8341, 10222, 16682, 23941, 39071, 47882, 78142, 118091, 236182, 454879, 742349, 909758, 1484698, 2243729, 4487458, 10510099, 21020198, 199691881, 399383762]

約数ペア:

[(1, 399383762), (2, 199691881), (19, 21020198), (38, 10510099), (89, 4487458), (178, 2243729), (269, 1484698), (439, 909758), (538, 742349), (878, 454879), (1691, 236182), (3382, 118091), (5111, 78142), (8341, 47882), (10222, 39071), (16682, 23941)]