278115136

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:360

約数の個数: 112

約数和(自身を含む): 630862848

約数和(自身を除く): 352747712

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 41, 52, 62, 64, 82, 104, 124, 164, 208, 248, 263, 328, 403, 416, 496, 526, 533, 656, 806, 832, 992, 1052, 1066, 1271, 1312, 1612, 1984, 2104, 2132, 2542, 2624, 3224, 3419, 4208, 4264, 5084, 6448, 6838, 8153, 8416, 8528, 10168, 10783, 12896, 13676, 16306, 16523, 16832, 17056, 20336, 21566, 25792, 27352, 32612, 33046, 34112, 40672, 43132, 54704, 65224, 66092, 81344, 86264, 105989, 109408, 130448, 132184, 140179, 172528, 211978, 218816, 260896, 264368, 280358, 334273, 345056, 423956, 521792, 528736, 560716, 668546, 690112, 847912, 1057472, 1121432, 1337092, 1695824, 2242864, 2674184, 3391648, 4345549, 4485728, 5348368, 6783296, 8691098, 8971456, 10696736, 17382196, 21393472, 34764392, 69528784, 139057568, 278115136]

約数ペア:

[(1, 278115136), (2, 139057568), (4, 69528784), (8, 34764392), (13, 21393472), (16, 17382196), (26, 10696736), (31, 8971456), (32, 8691098), (41, 6783296), (52, 5348368), (62, 4485728), (64, 4345549), (82, 3391648), (104, 2674184), (124, 2242864), (164, 1695824), (208, 1337092), (248, 1121432), (263, 1057472), (328, 847912), (403, 690112), (416, 668546), (496, 560716), (526, 528736), (533, 521792), (656, 423956), (806, 345056), (832, 334273), (992, 280358), (1052, 264368), (1066, 260896), (1271, 218816), (1312, 211978), (1612, 172528), (1984, 140179), (2104, 132184), (2132, 130448), (2542, 109408), (2624, 105989), (3224, 86264), (3419, 81344), (4208, 66092), (4264, 65224), (5084, 54704), (6448, 43132), (6838, 40672), (8153, 34112), (8416, 33046), (8528, 32612), (10168, 27352), (10783, 25792), (12896, 21566), (13676, 20336), (16306, 17056), (16523, 16832)]