1221231856

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:939

約数の個数: 120

約数和(自身を含む): 2803641984

約数和(自身を除く): 1582410128

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 169, 208, 221, 248, 272, 338, 403, 442, 496, 527, 676, 806, 857, 884, 1054, 1352, 1612, 1714, 1768, 2108, 2704, 2873, 3224, 3428, 3536, 4216, 5239, 5746, 6448, 6851, 6856, 8432, 10478, 11141, 11492, 13702, 13712, 14569, 20956, 22282, 22984, 26567, 27404, 29138, 41912, 44564, 45968, 53134, 54808, 58276, 83824, 89063, 89128, 106268, 109616, 116552, 144833, 178126, 178256, 189397, 212536, 233104, 289666, 345371, 356252, 378794, 425072, 451639, 579332, 690742, 712504, 757588, 903278, 1158664, 1381484, 1425008, 1515176, 1806556, 2317328, 2462161, 2762968, 3030352, 3613112, 4489823, 4924322, 5525936, 5871307, 7226224, 8979646, 9848644, 11742614, 17959292, 19697288, 23485228, 35918584, 39394576, 46970456, 71837168, 76326991, 93940912, 152653982, 305307964, 610615928, 1221231856]

約数ペア:

[(1, 1221231856), (2, 610615928), (4, 305307964), (8, 152653982), (13, 93940912), (16, 76326991), (17, 71837168), (26, 46970456), (31, 39394576), (34, 35918584), (52, 23485228), (62, 19697288), (68, 17959292), (104, 11742614), (124, 9848644), (136, 8979646), (169, 7226224), (208, 5871307), (221, 5525936), (248, 4924322), (272, 4489823), (338, 3613112), (403, 3030352), (442, 2762968), (496, 2462161), (527, 2317328), (676, 1806556), (806, 1515176), (857, 1425008), (884, 1381484), (1054, 1158664), (1352, 903278), (1612, 757588), (1714, 712504), (1768, 690742), (2108, 579332), (2704, 451639), (2873, 425072), (3224, 378794), (3428, 356252), (3536, 345371), (4216, 289666), (5239, 233104), (5746, 212536), (6448, 189397), (6851, 178256), (6856, 178126), (8432, 144833), (10478, 116552), (11141, 109616), (11492, 106268), (13702, 89128), (13712, 89063), (14569, 83824), (20956, 58276), (22282, 54808), (22984, 53134), (26567, 45968), (27404, 44564), (29138, 41912)]