1216888915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{4297}}^1$

素因数の和:4603

約数の個数: 32

約数和(自身を含む): 1683440640

約数和(自身を除く): 466551725

約数列:

[1, 5, 11, 19, 55, 95, 209, 271, 1045, 1355, 2981, 4297, 5149, 14905, 21485, 25745, 47267, 56639, 81643, 236335, 283195, 408215, 898073, 1164487, 4490365, 5822435, 12809357, 22125253, 64046785, 110626265, 243377783, 1216888915]

約数ペア:

[(1, 1216888915), (5, 243377783), (11, 110626265), (19, 64046785), (55, 22125253), (95, 12809357), (209, 5822435), (271, 4490365), (1045, 1164487), (1355, 898073), (2981, 408215), (4297, 283195), (5149, 236335), (14905, 81643), (21485, 56639), (25745, 47267)]