71775320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 165888000

約数和(自身を除く): 94112680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 127, 142, 199, 254, 284, 355, 398, 508, 568, 635, 710, 796, 995, 1016, 1270, 1420, 1592, 1990, 2540, 2840, 3980, 5080, 7960, 9017, 14129, 18034, 25273, 28258, 36068, 45085, 50546, 56516, 70645, 72136, 90170, 101092, 113032, 126365, 141290, 180340, 202184, 252730, 282580, 360680, 505460, 565160, 1010920, 1794383, 3588766, 7177532, 8971915, 14355064, 17943830, 35887660, 71775320]

約数ペア:

[(1, 71775320), (2, 35887660), (4, 17943830), (5, 14355064), (8, 8971915), (10, 7177532), (20, 3588766), (40, 1794383), (71, 1010920), (127, 565160), (142, 505460), (199, 360680), (254, 282580), (284, 252730), (355, 202184), (398, 180340), (508, 141290), (568, 126365), (635, 113032), (710, 101092), (796, 90170), (995, 72136), (1016, 70645), (1270, 56516), (1420, 50546), (1592, 45085), (1990, 36068), (2540, 28258), (2840, 25273), (3980, 18034), (5080, 14129), (7960, 9017)]