800026332080

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1\times {\mathrm{138799}}^1$

素因数の和:139582

約数の個数: 80

約数和(自身を含む): 1879979376000

約数和(自身を除く): 1079953043920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 661, 872, 1090, 1322, 1744, 2180, 2644, 3305, 4360, 5288, 6610, 8720, 10576, 13220, 26440, 52880, 72049, 138799, 144098, 277598, 288196, 360245, 555196, 576392, 693995, 720490, 1110392, 1152784, 1387990, 1440980, 2220784, 2775980, 2881960, 5551960, 5763920, 11103920, 15129091, 30258182, 60516364, 75645455, 91746139, 121032728, 151290910, 183492278, 242065456, 302581820, 366984556, 458730695, 605163640, 733969112, 917461390, 1210327280, 1467938224, 1834922780, 3669845560, 7339691120, 10000329151, 20000658302, 40001316604, 50001645755, 80002633208, 100003291510, 160005266416, 200006583020, 400013166040, 800026332080]

約数ペア:

[(1, 800026332080), (2, 400013166040), (4, 200006583020), (5, 160005266416), (8, 100003291510), (10, 80002633208), (16, 50001645755), (20, 40001316604), (40, 20000658302), (80, 10000329151), (109, 7339691120), (218, 3669845560), (436, 1834922780), (545, 1467938224), (661, 1210327280), (872, 917461390), (1090, 733969112), (1322, 605163640), (1744, 458730695), (2180, 366984556), (2644, 302581820), (3305, 242065456), (4360, 183492278), (5288, 151290910), (6610, 121032728), (8720, 91746139), (10576, 75645455), (13220, 60516364), (26440, 30258182), (52880, 15129091), (72049, 11103920), (138799, 5763920), (144098, 5551960), (277598, 2881960), (288196, 2775980), (360245, 2220784), (555196, 1440980), (576392, 1387990), (693995, 1152784), (720490, 1110392)]