81141570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:400

約数の個数: 96

約数和(自身を含む): 220446720

約数和(自身を除く): 139305150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 127, 155, 186, 229, 254, 279, 310, 381, 458, 465, 558, 635, 687, 762, 930, 1143, 1145, 1270, 1374, 1395, 1905, 2061, 2286, 2290, 2790, 3435, 3810, 3937, 4122, 5715, 6870, 7099, 7874, 10305, 11430, 11811, 14198, 19685, 20610, 21297, 23622, 29083, 35433, 35495, 39370, 42594, 58166, 59055, 63891, 70866, 70990, 87249, 106485, 118110, 127782, 145415, 174498, 177165, 212970, 261747, 290830, 319455, 354330, 436245, 523494, 638910, 872490, 901573, 1308735, 1803146, 2617470, 2704719, 4507865, 5409438, 8114157, 9015730, 13523595, 16228314, 27047190, 40570785, 81141570]

約数ペア:

[(1, 81141570), (2, 40570785), (3, 27047190), (5, 16228314), (6, 13523595), (9, 9015730), (10, 8114157), (15, 5409438), (18, 4507865), (30, 2704719), (31, 2617470), (45, 1803146), (62, 1308735), (90, 901573), (93, 872490), (127, 638910), (155, 523494), (186, 436245), (229, 354330), (254, 319455), (279, 290830), (310, 261747), (381, 212970), (458, 177165), (465, 174498), (558, 145415), (635, 127782), (687, 118110), (762, 106485), (930, 87249), (1143, 70990), (1145, 70866), (1270, 63891), (1374, 59055), (1395, 58166), (1905, 42594), (2061, 39370), (2286, 35495), (2290, 35433), (2790, 29083), (3435, 23622), (3810, 21297), (3937, 20610), (4122, 19685), (5715, 14198), (6870, 11811), (7099, 11430), (7874, 10305)]