20164042955

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{743}}^1$

素因数の和:1056

約数の個数: 64

約数和(自身を含む): 28674736128

約数和(自身を除く): 8510693173

約数列:

[1, 5, 7, 35, 67, 71, 163, 335, 355, 469, 497, 743, 815, 1141, 2345, 2485, 3715, 4757, 5201, 5705, 10921, 11573, 23785, 26005, 33299, 49781, 52753, 54605, 57865, 76447, 81011, 121109, 166495, 248905, 263765, 348467, 369271, 382235, 405055, 605545, 775391, 847763, 1742335, 1846355, 3534451, 3876955, 4238815, 5427737, 8114303, 8598739, 17672255, 24741157, 27138685, 40571515, 42993695, 56800121, 60191173, 123705785, 284000605, 300955865, 576115513, 2880577565, 4032808591, 20164042955]

約数ペア:

[(1, 20164042955), (5, 4032808591), (7, 2880577565), (35, 576115513), (67, 300955865), (71, 284000605), (163, 123705785), (335, 60191173), (355, 56800121), (469, 42993695), (497, 40571515), (743, 27138685), (815, 24741157), (1141, 17672255), (2345, 8598739), (2485, 8114303), (3715, 5427737), (4757, 4238815), (5201, 3876955), (5705, 3534451), (10921, 1846355), (11573, 1742335), (23785, 847763), (26005, 775391), (33299, 605545), (49781, 405055), (52753, 382235), (54605, 369271), (57865, 348467), (76447, 263765), (81011, 248905), (121109, 166495)]