82979780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{727}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 188348160

約数和(自身を除く): 105368380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 439, 727, 878, 1454, 1756, 2195, 2908, 3635, 4390, 5707, 7270, 8780, 9451, 11414, 14540, 18902, 22828, 28535, 37804, 47255, 57070, 94510, 114140, 189020, 319153, 638306, 1276612, 1595765, 3191530, 4148989, 6383060, 8297978, 16595956, 20744945, 41489890, 82979780]

約数ペア:

[(1, 82979780), (2, 41489890), (4, 20744945), (5, 16595956), (10, 8297978), (13, 6383060), (20, 4148989), (26, 3191530), (52, 1595765), (65, 1276612), (130, 638306), (260, 319153), (439, 189020), (727, 114140), (878, 94510), (1454, 57070), (1756, 47255), (2195, 37804), (2908, 28535), (3635, 22828), (4390, 18902), (5707, 14540), (7270, 11414), (8780, 9451)]