18876272

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2003}}^1$

素因数の和:2061

約数の個数: 40

約数和(自身を含む): 39759360

約数和(自身を除く): 20883088

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2003, 2356, 4006, 4712, 8012, 9424, 16024, 32048, 38057, 62093, 76114, 124186, 152228, 248372, 304456, 496744, 608912, 993488, 1179767, 2359534, 4719068, 9438136, 18876272]

約数ペア:

[(1, 18876272), (2, 9438136), (4, 4719068), (8, 2359534), (16, 1179767), (19, 993488), (31, 608912), (38, 496744), (62, 304456), (76, 248372), (124, 152228), (152, 124186), (248, 76114), (304, 62093), (496, 38057), (589, 32048), (1178, 16024), (2003, 9424), (2356, 8012), (4006, 4712)]