209975896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{65129}}^1$

素因数の和:65179

約数の個数: 32

約数和(自身を含む): 437673600

約数和(自身を除く): 227697704

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 65129, 130258, 260516, 521032, 846677, 1693354, 2018999, 3386708, 4037998, 6773416, 8075996, 16151992, 26246987, 52493974, 104987948, 209975896]

約数ペア:

[(1, 209975896), (2, 104987948), (4, 52493974), (8, 26246987), (13, 16151992), (26, 8075996), (31, 6773416), (52, 4037998), (62, 3386708), (104, 2018999), (124, 1693354), (248, 846677), (403, 521032), (806, 260516), (1612, 130258), (3224, 65129)]