256985192

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{30977}}^1$

素因数の和:31061

約数の個数: 32

約数和(自身を含む): 518571720

約数和(自身を除く): 261586528

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 244, 488, 1037, 2074, 4148, 8296, 30977, 61954, 123908, 247816, 526609, 1053218, 1889597, 2106436, 3779194, 4212872, 7558388, 15116776, 32123149, 64246298, 128492596, 256985192]

約数ペア:

[(1, 256985192), (2, 128492596), (4, 64246298), (8, 32123149), (17, 15116776), (34, 7558388), (61, 4212872), (68, 3779194), (122, 2106436), (136, 1889597), (244, 1053218), (488, 526609), (1037, 247816), (2074, 123908), (4148, 61954), (8296, 30977)]