80513860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2833}}^1$

素因数の和:2885

約数の個数: 72

約数和(自身を含む): 203537880

約数和(自身を除く): 123024020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2833, 2842, 4060, 5666, 5684, 7105, 11332, 14165, 14210, 19831, 28330, 28420, 39662, 56660, 79324, 82157, 99155, 138817, 164314, 198310, 277634, 328628, 396620, 410785, 555268, 575099, 694085, 821570, 1150198, 1388170, 1643140, 2300396, 2776340, 2875495, 4025693, 5750990, 8051386, 11501980, 16102772, 20128465, 40256930, 80513860]

約数ペア:

[(1, 80513860), (2, 40256930), (4, 20128465), (5, 16102772), (7, 11501980), (10, 8051386), (14, 5750990), (20, 4025693), (28, 2875495), (29, 2776340), (35, 2300396), (49, 1643140), (58, 1388170), (70, 1150198), (98, 821570), (116, 694085), (140, 575099), (145, 555268), (196, 410785), (203, 396620), (245, 328628), (290, 277634), (406, 198310), (490, 164314), (580, 138817), (812, 99155), (980, 82157), (1015, 79324), (1421, 56660), (2030, 39662), (2833, 28420), (2842, 28330), (4060, 19831), (5666, 14210), (5684, 14165), (7105, 11332)]