728417440

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239611}}^1$

素因数の和:239645

約数の個数: 48

約数和(自身を含む): 1811466720

約数和(自身を除く): 1083049280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 239611, 479222, 958444, 1198055, 1916888, 2396110, 3833776, 4552609, 4792220, 7667552, 9105218, 9584440, 18210436, 19168880, 22763045, 36420872, 38337760, 45526090, 72841744, 91052180, 145683488, 182104360, 364208720, 728417440]

約数ペア:

[(1, 728417440), (2, 364208720), (4, 182104360), (5, 145683488), (8, 91052180), (10, 72841744), (16, 45526090), (19, 38337760), (20, 36420872), (32, 22763045), (38, 19168880), (40, 18210436), (76, 9584440), (80, 9105218), (95, 7667552), (152, 4792220), (160, 4552609), (190, 3833776), (304, 2396110), (380, 1916888), (608, 1198055), (760, 958444), (1520, 479222), (3040, 239611)]