21220048640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2368309}}^1$

素因数の和:2368337

約数の個数: 72

約数和(自身を含む): 58089907680

約数和(自身を除く): 36869859040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 2368309, 4736618, 9473236, 11841545, 16578163, 18946472, 23683090, 33156326, 37892944, 47366180, 66312652, 75785888, 82890815, 94732360, 132625304, 151571776, 165781630, 189464720, 265250608, 303143552, 331563260, 378929440, 530501216, 606287104, 663126520, 757858880, 1061002432, 1326253040, 1515717760, 2122004864, 2652506080, 3031435520, 4244009728, 5305012160, 10610024320, 21220048640]

約数ペア:

[(1, 21220048640), (2, 10610024320), (4, 5305012160), (5, 4244009728), (7, 3031435520), (8, 2652506080), (10, 2122004864), (14, 1515717760), (16, 1326253040), (20, 1061002432), (28, 757858880), (32, 663126520), (35, 606287104), (40, 530501216), (56, 378929440), (64, 331563260), (70, 303143552), (80, 265250608), (112, 189464720), (128, 165781630), (140, 151571776), (160, 132625304), (224, 94732360), (256, 82890815), (280, 75785888), (320, 66312652), (448, 47366180), (560, 37892944), (640, 33156326), (896, 23683090), (1120, 18946472), (1280, 16578163), (1792, 11841545), (2240, 9473236), (4480, 4736618), (8960, 2368309)]