20162264840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{378137}}^1$

素因数の和:378222

約数の個数: 64

約数和(自身を含む): 47917647360

約数和(自身を除く): 27755382520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1720, 2666, 5332, 6665, 10664, 13330, 26660, 53320, 378137, 756274, 1512548, 1890685, 3025096, 3781370, 7562740, 11722247, 15125480, 16259891, 23444494, 32519782, 46888988, 58611235, 65039564, 81299455, 93777976, 117222470, 130079128, 162598910, 234444940, 325197820, 468889880, 504056621, 650395640, 1008113242, 2016226484, 2520283105, 4032452968, 5040566210, 10081132420, 20162264840]

約数ペア:

[(1, 20162264840), (2, 10081132420), (4, 5040566210), (5, 4032452968), (8, 2520283105), (10, 2016226484), (20, 1008113242), (31, 650395640), (40, 504056621), (43, 468889880), (62, 325197820), (86, 234444940), (124, 162598910), (155, 130079128), (172, 117222470), (215, 93777976), (248, 81299455), (310, 65039564), (344, 58611235), (430, 46888988), (620, 32519782), (860, 23444494), (1240, 16259891), (1333, 15125480), (1720, 11722247), (2666, 7562740), (5332, 3781370), (6665, 3025096), (10664, 1890685), (13330, 1512548), (26660, 756274), (53320, 378137)]