639242992

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{7817}}^1$

素因数の和:8113

約数の個数: 40

約数和(自身を含む): 1308733200

約数和(自身を除く): 669490208

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 269, 304, 538, 1076, 2152, 4304, 5111, 7817, 10222, 15634, 20444, 31268, 40888, 62536, 81776, 125072, 148523, 297046, 594092, 1188184, 2102773, 2376368, 4205546, 8411092, 16822184, 33644368, 39952687, 79905374, 159810748, 319621496, 639242992]

約数ペア:

[(1, 639242992), (2, 319621496), (4, 159810748), (8, 79905374), (16, 39952687), (19, 33644368), (38, 16822184), (76, 8411092), (152, 4205546), (269, 2376368), (304, 2102773), (538, 1188184), (1076, 594092), (2152, 297046), (4304, 148523), (5111, 125072), (7817, 81776), (10222, 62536), (15634, 40888), (20444, 31268)]