20145940940

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{281}}^1\times {\mathrm{43189}}^1$

素因数の和:43562

約数の個数: 48

約数和(自身を含む): 42969558240

約数和(自身を除く): 22823617300

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 281, 332, 415, 562, 830, 1124, 1405, 1660, 2810, 5620, 23323, 43189, 46646, 86378, 93292, 116615, 172756, 215945, 233230, 431890, 466460, 863780, 3584687, 7169374, 12136109, 14338748, 17923435, 24272218, 35846870, 48544436, 60680545, 71693740, 121361090, 242722180, 1007297047, 2014594094, 4029188188, 5036485235, 10072970470, 20145940940]

約数ペア:

[(1, 20145940940), (2, 10072970470), (4, 5036485235), (5, 4029188188), (10, 2014594094), (20, 1007297047), (83, 242722180), (166, 121361090), (281, 71693740), (332, 60680545), (415, 48544436), (562, 35846870), (830, 24272218), (1124, 17923435), (1405, 14338748), (1660, 12136109), (2810, 7169374), (5620, 3584687), (23323, 863780), (43189, 466460), (46646, 431890), (86378, 233230), (93292, 215945), (116615, 172756)]