72991305

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 133436160

約数和(自身を除く): 60444855

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 109, 115, 207, 327, 345, 545, 647, 981, 1035, 1635, 1941, 2507, 3235, 4905, 5823, 7521, 9705, 12535, 14881, 22563, 29115, 37605, 44643, 70523, 74405, 112815, 133929, 211569, 223215, 352615, 634707, 669645, 1057845, 1622029, 3173535, 4866087, 8110145, 14598261, 24330435, 72991305]

約数ペア:

[(1, 72991305), (3, 24330435), (5, 14598261), (9, 8110145), (15, 4866087), (23, 3173535), (45, 1622029), (69, 1057845), (109, 669645), (115, 634707), (207, 352615), (327, 223215), (345, 211569), (545, 133929), (647, 112815), (981, 74405), (1035, 70523), (1635, 44643), (1941, 37605), (2507, 29115), (3235, 22563), (4905, 14881), (5823, 12535), (7521, 9705)]