20210516880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{165443}}^1$

素因数の和:165968

約数の個数: 80

約数和(自身を含む): 62776071360

約数和(自身を除く): 42565554480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 509, 1018, 1527, 2036, 2545, 3054, 4072, 5090, 6108, 7635, 8144, 10180, 12216, 15270, 20360, 24432, 30540, 40720, 61080, 122160, 165443, 330886, 496329, 661772, 827215, 992658, 1323544, 1654430, 1985316, 2481645, 2647088, 3308860, 3970632, 4963290, 6617720, 7941264, 9926580, 13235440, 19853160, 39706320, 84210487, 168420974, 252631461, 336841948, 421052435, 505262922, 673683896, 842104870, 1010525844, 1263157305, 1347367792, 1684209740, 2021051688, 2526314610, 3368419480, 4042103376, 5052629220, 6736838960, 10105258440, 20210516880]

約数ペア:

[(1, 20210516880), (2, 10105258440), (3, 6736838960), (4, 5052629220), (5, 4042103376), (6, 3368419480), (8, 2526314610), (10, 2021051688), (12, 1684209740), (15, 1347367792), (16, 1263157305), (20, 1010525844), (24, 842104870), (30, 673683896), (40, 505262922), (48, 421052435), (60, 336841948), (80, 252631461), (120, 168420974), (240, 84210487), (509, 39706320), (1018, 19853160), (1527, 13235440), (2036, 9926580), (2545, 7941264), (3054, 6617720), (4072, 4963290), (5090, 3970632), (6108, 3308860), (7635, 2647088), (8144, 2481645), (10180, 1985316), (12216, 1654430), (15270, 1323544), (20360, 992658), (24432, 827215), (30540, 661772), (40720, 496329), (61080, 330886), (122160, 165443)]