213022720

素因数分解:

$2^{11}\times 5^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 520097760

約数和(自身を除く): 307075040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 293, 320, 355, 512, 568, 586, 640, 710, 1024, 1136, 1172, 1280, 1420, 1465, 2048, 2272, 2344, 2560, 2840, 2930, 4544, 4688, 5120, 5680, 5860, 9088, 9376, 10240, 11360, 11720, 18176, 18752, 20803, 22720, 23440, 36352, 37504, 41606, 45440, 46880, 72704, 75008, 83212, 90880, 93760, 104015, 145408, 150016, 166424, 181760, 187520, 208030, 300032, 332848, 363520, 375040, 416060, 600064, 665696, 727040, 750080, 832120, 1331392, 1500160, 1664240, 2662784, 3000320, 3328480, 5325568, 6656960, 10651136, 13313920, 21302272, 26627840, 42604544, 53255680, 106511360, 213022720]

約数ペア:

[(1, 213022720), (2, 106511360), (4, 53255680), (5, 42604544), (8, 26627840), (10, 21302272), (16, 13313920), (20, 10651136), (32, 6656960), (40, 5325568), (64, 3328480), (71, 3000320), (80, 2662784), (128, 1664240), (142, 1500160), (160, 1331392), (256, 832120), (284, 750080), (293, 727040), (320, 665696), (355, 600064), (512, 416060), (568, 375040), (586, 363520), (640, 332848), (710, 300032), (1024, 208030), (1136, 187520), (1172, 181760), (1280, 166424), (1420, 150016), (1465, 145408), (2048, 104015), (2272, 93760), (2344, 90880), (2560, 83212), (2840, 75008), (2930, 72704), (4544, 46880), (4688, 45440), (5120, 41606), (5680, 37504), (5860, 36352), (9088, 23440), (9376, 22720), (10240, 20803), (11360, 18752), (11720, 18176)]