640474848

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{13159}}^1$

素因数の和:13201

約数の個数: 108

約数和(自身を含む): 1972381320

約数和(自身を除く): 1331906472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 169, 208, 234, 288, 312, 338, 416, 468, 507, 624, 676, 936, 1014, 1248, 1352, 1521, 1872, 2028, 2704, 3042, 3744, 4056, 5408, 6084, 8112, 12168, 13159, 16224, 24336, 26318, 39477, 48672, 52636, 78954, 105272, 118431, 157908, 171067, 210544, 236862, 315816, 342134, 421088, 473724, 513201, 631632, 684268, 947448, 1026402, 1263264, 1368536, 1539603, 1894896, 2052804, 2223871, 2737072, 3079206, 3789792, 4105608, 4447742, 5474144, 6158412, 6671613, 8211216, 8895484, 12316824, 13343226, 16422432, 17790968, 20014839, 24633648, 26686452, 35581936, 40029678, 49267296, 53372904, 71163872, 80059356, 106745808, 160118712, 213491616, 320237424, 640474848]

約数ペア:

[(1, 640474848), (2, 320237424), (3, 213491616), (4, 160118712), (6, 106745808), (8, 80059356), (9, 71163872), (12, 53372904), (13, 49267296), (16, 40029678), (18, 35581936), (24, 26686452), (26, 24633648), (32, 20014839), (36, 17790968), (39, 16422432), (48, 13343226), (52, 12316824), (72, 8895484), (78, 8211216), (96, 6671613), (104, 6158412), (117, 5474144), (144, 4447742), (156, 4105608), (169, 3789792), (208, 3079206), (234, 2737072), (288, 2223871), (312, 2052804), (338, 1894896), (416, 1539603), (468, 1368536), (507, 1263264), (624, 1026402), (676, 947448), (936, 684268), (1014, 631632), (1248, 513201), (1352, 473724), (1521, 421088), (1872, 342134), (2028, 315816), (2704, 236862), (3042, 210544), (3744, 171067), (4056, 157908), (5408, 118431), (6084, 105272), (8112, 78954), (12168, 52636), (13159, 48672), (16224, 39477), (24336, 26318)]