287303960

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{54829}}^1$

素因数の和:54971

約数の個数: 32

約数和(自身を含む): 651380400

約数和(自身を除く): 364076440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 54829, 109658, 219316, 274145, 438632, 548290, 1096580, 2193160, 7182599, 14365198, 28730396, 35912995, 57460792, 71825990, 143651980, 287303960]

約数ペア:

[(1, 287303960), (2, 143651980), (4, 71825990), (5, 57460792), (8, 35912995), (10, 28730396), (20, 14365198), (40, 7182599), (131, 2193160), (262, 1096580), (524, 548290), (655, 438632), (1048, 274145), (1310, 219316), (2620, 109658), (5240, 54829)]