215430920

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{19031}}^1$

素因数の和:19325

約数の個数: 32

約数和(自身を含む): 486457920

約数和(自身を除く): 271027000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 19031, 38062, 76124, 95155, 152248, 190310, 380620, 761240, 5385773, 10771546, 21543092, 26928865, 43086184, 53857730, 107715460, 215430920]

約数ペア:

[(1, 215430920), (2, 107715460), (4, 53857730), (5, 43086184), (8, 26928865), (10, 21543092), (20, 10771546), (40, 5385773), (283, 761240), (566, 380620), (1132, 190310), (1415, 152248), (2264, 95155), (2830, 76124), (5660, 38062), (11320, 19031)]