20416968

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:700

約数の個数: 128

約数和(自身を含む): 66729600

約数和(自身を除く): 46312632

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 18, 22, 24, 26, 27, 33, 36, 39, 44, 52, 54, 66, 72, 78, 88, 99, 104, 108, 117, 132, 143, 156, 198, 216, 234, 264, 286, 297, 312, 351, 396, 429, 468, 572, 594, 661, 702, 792, 858, 936, 1144, 1188, 1287, 1322, 1404, 1716, 1983, 2376, 2574, 2644, 2808, 3432, 3861, 3966, 5148, 5288, 5949, 7271, 7722, 7932, 8593, 10296, 11898, 14542, 15444, 15864, 17186, 17847, 21813, 23796, 25779, 29084, 30888, 34372, 35694, 43626, 47592, 51558, 58168, 65439, 68744, 71388, 77337, 87252, 94523, 103116, 130878, 142776, 154674, 174504, 189046, 196317, 206232, 232011, 261756, 283569, 309348, 378092, 392634, 464022, 523512, 567138, 618696, 756184, 785268, 850707, 928044, 1134276, 1570536, 1701414, 1856088, 2268552, 2552121, 3402828, 5104242, 6805656, 10208484, 20416968]

約数ペア:

[(1, 20416968), (2, 10208484), (3, 6805656), (4, 5104242), (6, 3402828), (8, 2552121), (9, 2268552), (11, 1856088), (12, 1701414), (13, 1570536), (18, 1134276), (22, 928044), (24, 850707), (26, 785268), (27, 756184), (33, 618696), (36, 567138), (39, 523512), (44, 464022), (52, 392634), (54, 378092), (66, 309348), (72, 283569), (78, 261756), (88, 232011), (99, 206232), (104, 196317), (108, 189046), (117, 174504), (132, 154674), (143, 142776), (156, 130878), (198, 103116), (216, 94523), (234, 87252), (264, 77337), (286, 71388), (297, 68744), (312, 65439), (351, 58168), (396, 51558), (429, 47592), (468, 43626), (572, 35694), (594, 34372), (661, 30888), (702, 29084), (792, 25779), (858, 23796), (936, 21813), (1144, 17847), (1188, 17186), (1287, 15864), (1322, 15444), (1404, 14542), (1716, 11898), (1983, 10296), (2376, 8593), (2574, 7932), (2644, 7722), (2808, 7271), (3432, 5949), (3861, 5288), (3966, 5148)]