21401280

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{2477}}^1$

素因数の和:2503

約数の個数: 112

約数和(自身を含む): 75529440

約数和(自身を除く): 54128160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2477, 2880, 4320, 4954, 7431, 8640, 9908, 12385, 14862, 19816, 22293, 24770, 29724, 37155, 39632, 44586, 49540, 59448, 66879, 74310, 79264, 89172, 99080, 111465, 118896, 133758, 148620, 158528, 178344, 198160, 222930, 237792, 267516, 297240, 334395, 356688, 396320, 445860, 475584, 535032, 594480, 668790, 713376, 792640, 891720, 1070064, 1188960, 1337580, 1426752, 1783440, 2140128, 2377920, 2675160, 3566880, 4280256, 5350320, 7133760, 10700640, 21401280]

約数ペア:

[(1, 21401280), (2, 10700640), (3, 7133760), (4, 5350320), (5, 4280256), (6, 3566880), (8, 2675160), (9, 2377920), (10, 2140128), (12, 1783440), (15, 1426752), (16, 1337580), (18, 1188960), (20, 1070064), (24, 891720), (27, 792640), (30, 713376), (32, 668790), (36, 594480), (40, 535032), (45, 475584), (48, 445860), (54, 396320), (60, 356688), (64, 334395), (72, 297240), (80, 267516), (90, 237792), (96, 222930), (108, 198160), (120, 178344), (135, 158528), (144, 148620), (160, 133758), (180, 118896), (192, 111465), (216, 99080), (240, 89172), (270, 79264), (288, 74310), (320, 66879), (360, 59448), (432, 49540), (480, 44586), (540, 39632), (576, 37155), (720, 29724), (864, 24770), (960, 22293), (1080, 19816), (1440, 14862), (1728, 12385), (2160, 9908), (2477, 8640), (2880, 7431), (4320, 4954)]