65784940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19463}}^1$

素因数の和:19498

約数の個数: 36

約数和(自身を含む): 149600304

約数和(自身を除く): 83815364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 19463, 38926, 77852, 97315, 194630, 253019, 389260, 506038, 1012076, 1265095, 2530190, 3289247, 5060380, 6578494, 13156988, 16446235, 32892470, 65784940]

約数ペア:

[(1, 65784940), (2, 32892470), (4, 16446235), (5, 13156988), (10, 6578494), (13, 5060380), (20, 3289247), (26, 2530190), (52, 1265095), (65, 1012076), (130, 506038), (169, 389260), (260, 253019), (338, 194630), (676, 97315), (845, 77852), (1690, 38926), (3380, 19463)]