18053780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{787}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 40244736

約数和(自身を除く): 22190956

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 787, 1147, 1574, 2294, 3148, 3935, 4588, 5735, 7870, 11470, 15740, 22940, 24397, 29119, 48794, 58238, 97588, 116476, 121985, 145595, 243970, 291190, 487940, 582380, 902689, 1805378, 3610756, 4513445, 9026890, 18053780]

約数ペア:

[(1, 18053780), (2, 9026890), (4, 4513445), (5, 3610756), (10, 1805378), (20, 902689), (31, 582380), (37, 487940), (62, 291190), (74, 243970), (124, 145595), (148, 121985), (155, 116476), (185, 97588), (310, 58238), (370, 48794), (620, 29119), (740, 24397), (787, 22940), (1147, 15740), (1574, 11470), (2294, 7870), (3148, 5735), (3935, 4588)]