20212509616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1\times {\mathrm{2549}}^1$

素因数の和:3206

約数の個数: 80

約数和(自身を含む): 42895692000

約数和(自身を除く): 22683182384

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 569, 871, 1072, 1138, 1742, 2276, 2549, 3484, 4552, 5098, 6968, 7397, 9104, 10196, 13936, 14794, 20392, 29588, 33137, 38123, 40784, 59176, 66274, 76246, 118352, 132548, 152492, 170783, 265096, 304984, 341566, 495599, 530192, 609968, 683132, 991198, 1366264, 1450381, 1982396, 2220179, 2732528, 2900762, 3964792, 4440358, 5801524, 7929584, 8880716, 11603048, 17761432, 18854953, 23206096, 35522864, 37709906, 75419812, 97175527, 150839624, 194351054, 301679248, 388702108, 777404216, 1263281851, 1554808432, 2526563702, 5053127404, 10106254808, 20212509616]

約数ペア:

[(1, 20212509616), (2, 10106254808), (4, 5053127404), (8, 2526563702), (13, 1554808432), (16, 1263281851), (26, 777404216), (52, 388702108), (67, 301679248), (104, 194351054), (134, 150839624), (208, 97175527), (268, 75419812), (536, 37709906), (569, 35522864), (871, 23206096), (1072, 18854953), (1138, 17761432), (1742, 11603048), (2276, 8880716), (2549, 7929584), (3484, 5801524), (4552, 4440358), (5098, 3964792), (6968, 2900762), (7397, 2732528), (9104, 2220179), (10196, 1982396), (13936, 1450381), (14794, 1366264), (20392, 991198), (29588, 683132), (33137, 609968), (38123, 530192), (40784, 495599), (59176, 341566), (66274, 304984), (76246, 265096), (118352, 170783), (132548, 152492)]