406804940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{15259}}^1$

素因数の和:15342

約数の個数: 48

約数和(自身を含む): 902415360

約数和(自身を除く): 495610420

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1333, 2666, 5332, 6665, 13330, 15259, 26660, 30518, 61036, 76295, 152590, 305180, 473029, 656137, 946058, 1312274, 1892116, 2365145, 2624548, 3280685, 4730290, 6561370, 9460580, 13122740, 20340247, 40680494, 81360988, 101701235, 203402470, 406804940]

約数ペア:

[(1, 406804940), (2, 203402470), (4, 101701235), (5, 81360988), (10, 40680494), (20, 20340247), (31, 13122740), (43, 9460580), (62, 6561370), (86, 4730290), (124, 3280685), (155, 2624548), (172, 2365145), (215, 1892116), (310, 1312274), (430, 946058), (620, 656137), (860, 473029), (1333, 305180), (2666, 152590), (5332, 76295), (6665, 61036), (13330, 30518), (15259, 26660)]