51278720

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4217}}^1$

素因数の和:4255

約数の個数: 64

約数和(自身を含む): 129070800

約数和(自身を除く): 77792080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 4217, 6080, 8434, 12160, 16868, 21085, 33736, 42170, 67472, 80123, 84340, 134944, 160246, 168680, 269888, 320492, 337360, 400615, 539776, 640984, 674720, 801230, 1281968, 1349440, 1602460, 2563936, 2698880, 3204920, 5127872, 6409840, 10255744, 12819680, 25639360, 51278720]

約数ペア:

[(1, 51278720), (2, 25639360), (4, 12819680), (5, 10255744), (8, 6409840), (10, 5127872), (16, 3204920), (19, 2698880), (20, 2563936), (32, 1602460), (38, 1349440), (40, 1281968), (64, 801230), (76, 674720), (80, 640984), (95, 539776), (128, 400615), (152, 337360), (160, 320492), (190, 269888), (304, 168680), (320, 160246), (380, 134944), (608, 84340), (640, 80123), (760, 67472), (1216, 42170), (1520, 33736), (2432, 21085), (3040, 16868), (4217, 12160), (6080, 8434)]