161951680

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:498

約数の個数: 112

約数和(自身を含む): 425013120

約数和(自身を除く): 263061440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 139, 160, 176, 220, 278, 320, 331, 352, 440, 556, 662, 695, 704, 880, 1112, 1324, 1390, 1529, 1655, 1760, 2224, 2648, 2780, 3058, 3310, 3520, 3641, 4448, 5296, 5560, 6116, 6620, 7282, 7645, 8896, 10592, 11120, 12232, 13240, 14564, 15290, 18205, 21184, 22240, 24464, 26480, 29128, 30580, 36410, 44480, 46009, 48928, 52960, 58256, 61160, 72820, 92018, 97856, 105920, 116512, 122320, 145640, 184036, 230045, 233024, 244640, 291280, 368072, 460090, 489280, 506099, 582560, 736144, 920180, 1012198, 1165120, 1472288, 1840360, 2024396, 2530495, 2944576, 3680720, 4048792, 5060990, 7361440, 8097584, 10121980, 14722880, 16195168, 20243960, 32390336, 40487920, 80975840, 161951680]

約数ペア:

[(1, 161951680), (2, 80975840), (4, 40487920), (5, 32390336), (8, 20243960), (10, 16195168), (11, 14722880), (16, 10121980), (20, 8097584), (22, 7361440), (32, 5060990), (40, 4048792), (44, 3680720), (55, 2944576), (64, 2530495), (80, 2024396), (88, 1840360), (110, 1472288), (139, 1165120), (160, 1012198), (176, 920180), (220, 736144), (278, 582560), (320, 506099), (331, 489280), (352, 460090), (440, 368072), (556, 291280), (662, 244640), (695, 233024), (704, 230045), (880, 184036), (1112, 145640), (1324, 122320), (1390, 116512), (1529, 105920), (1655, 97856), (1760, 92018), (2224, 72820), (2648, 61160), (2780, 58256), (3058, 52960), (3310, 48928), (3520, 46009), (3641, 44480), (4448, 36410), (5296, 30580), (5560, 29128), (6116, 26480), (6620, 24464), (7282, 22240), (7645, 21184), (8896, 18205), (10592, 15290), (11120, 14564), (12232, 13240)]