661218530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{304709}}^1$

素因数の和:304754

約数の個数: 32

約数和(自身を含む): 1404103680

約数和(自身を除く): 742885150

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 304709, 609418, 1523545, 2132963, 3047090, 4265926, 9445979, 10664815, 18891958, 21329630, 47229895, 66121853, 94459790, 132243706, 330609265, 661218530]

約数ペア:

[(1, 661218530), (2, 330609265), (5, 132243706), (7, 94459790), (10, 66121853), (14, 47229895), (31, 21329630), (35, 18891958), (62, 10664815), (70, 9445979), (155, 4265926), (217, 3047090), (310, 2132963), (434, 1523545), (1085, 609418), (2170, 304709)]