31290240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:444

約数の個数: 128

約数和(自身を含む): 102326400

約数和(自身を除く): 71036160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 128, 129, 160, 172, 192, 215, 240, 258, 320, 344, 379, 384, 430, 480, 516, 640, 645, 688, 758, 860, 960, 1032, 1137, 1290, 1376, 1516, 1720, 1895, 1920, 2064, 2274, 2580, 2752, 3032, 3440, 3790, 4128, 4548, 5160, 5504, 5685, 6064, 6880, 7580, 8256, 9096, 10320, 11370, 12128, 13760, 15160, 16297, 16512, 18192, 20640, 22740, 24256, 27520, 30320, 32594, 36384, 41280, 45480, 48512, 48891, 60640, 65188, 72768, 81485, 82560, 90960, 97782, 121280, 130376, 145536, 162970, 181920, 195564, 242560, 244455, 260752, 325940, 363840, 391128, 488910, 521504, 651880, 727680, 782256, 977820, 1043008, 1303760, 1564512, 1955640, 2086016, 2607520, 3129024, 3911280, 5215040, 6258048, 7822560, 10430080, 15645120, 31290240]

約数ペア:

[(1, 31290240), (2, 15645120), (3, 10430080), (4, 7822560), (5, 6258048), (6, 5215040), (8, 3911280), (10, 3129024), (12, 2607520), (15, 2086016), (16, 1955640), (20, 1564512), (24, 1303760), (30, 1043008), (32, 977820), (40, 782256), (43, 727680), (48, 651880), (60, 521504), (64, 488910), (80, 391128), (86, 363840), (96, 325940), (120, 260752), (128, 244455), (129, 242560), (160, 195564), (172, 181920), (192, 162970), (215, 145536), (240, 130376), (258, 121280), (320, 97782), (344, 90960), (379, 82560), (384, 81485), (430, 72768), (480, 65188), (516, 60640), (640, 48891), (645, 48512), (688, 45480), (758, 41280), (860, 36384), (960, 32594), (1032, 30320), (1137, 27520), (1290, 24256), (1376, 22740), (1516, 20640), (1720, 18192), (1895, 16512), (1920, 16297), (2064, 15160), (2274, 13760), (2580, 12128), (2752, 11370), (3032, 10320), (3440, 9096), (3790, 8256), (4128, 7580), (4548, 6880), (5160, 6064), (5504, 5685)]