20637610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 24981590

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 59, 70, 95, 118, 133, 190, 263, 266, 295, 413, 526, 590, 665, 826, 1121, 1315, 1330, 1841, 2065, 2242, 2630, 3682, 4130, 4997, 5605, 7847, 9205, 9994, 11210, 15517, 15694, 18410, 24985, 31034, 34979, 39235, 49970, 69958, 77585, 78470, 108619, 155170, 174895, 217238, 294823, 349790, 543095, 589646, 1086190, 1474115, 2063761, 2948230, 4127522, 10318805, 20637610]

約数ペア:

[(1, 20637610), (2, 10318805), (5, 4127522), (7, 2948230), (10, 2063761), (14, 1474115), (19, 1086190), (35, 589646), (38, 543095), (59, 349790), (70, 294823), (95, 217238), (118, 174895), (133, 155170), (190, 108619), (263, 78470), (266, 77585), (295, 69958), (413, 49970), (526, 39235), (590, 34979), (665, 31034), (826, 24985), (1121, 18410), (1315, 15694), (1330, 15517), (1841, 11210), (2065, 9994), (2242, 9205), (2630, 7847), (3682, 5605), (4130, 4997)]