18890810784

素因数分解:

$2^5\times 3^2\times {\mathrm{881}}^1\times {\mathrm{74453}}^1$

素因数の和:75350

約数の個数: 72

約数和(自身を含む): 53782442532

約数和(自身を除く): 34891631748

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 881, 1762, 2643, 3524, 5286, 7048, 7929, 10572, 14096, 15858, 21144, 28192, 31716, 42288, 63432, 74453, 84576, 126864, 148906, 223359, 253728, 297812, 446718, 595624, 670077, 893436, 1191248, 1340154, 1786872, 2382496, 2680308, 3573744, 5360616, 7147488, 10721232, 21442464, 65593093, 131186186, 196779279, 262372372, 393558558, 524744744, 590337837, 787117116, 1049489488, 1180675674, 1574234232, 2098978976, 2361351348, 3148468464, 4722702696, 6296936928, 9445405392, 18890810784]

約数ペア:

[(1, 18890810784), (2, 9445405392), (3, 6296936928), (4, 4722702696), (6, 3148468464), (8, 2361351348), (9, 2098978976), (12, 1574234232), (16, 1180675674), (18, 1049489488), (24, 787117116), (32, 590337837), (36, 524744744), (48, 393558558), (72, 262372372), (96, 196779279), (144, 131186186), (288, 65593093), (881, 21442464), (1762, 10721232), (2643, 7147488), (3524, 5360616), (5286, 3573744), (7048, 2680308), (7929, 2382496), (10572, 1786872), (14096, 1340154), (15858, 1191248), (21144, 893436), (28192, 670077), (31716, 595624), (42288, 446718), (63432, 297812), (74453, 253728), (84576, 223359), (126864, 148906)]