20808540855

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1\times {\mathrm{52009}}^1$

素因数の和:52560

約数の個数: 48

約数和(自身を含む): 38263548960

約数和(自身を除く): 17455008105

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 523, 765, 1569, 2615, 4707, 7845, 8891, 23535, 26673, 44455, 52009, 80019, 133365, 156027, 260045, 400095, 468081, 780135, 884153, 2340405, 2652459, 4420765, 7957377, 13262295, 27200707, 39786885, 81602121, 136003535, 244806363, 408010605, 462412019, 1224031815, 1387236057, 2312060095, 4161708171, 6936180285, 20808540855]

約数ペア:

[(1, 20808540855), (3, 6936180285), (5, 4161708171), (9, 2312060095), (15, 1387236057), (17, 1224031815), (45, 462412019), (51, 408010605), (85, 244806363), (153, 136003535), (255, 81602121), (523, 39786885), (765, 27200707), (1569, 13262295), (2615, 7957377), (4707, 4420765), (7845, 2652459), (8891, 2340405), (23535, 884153), (26673, 780135), (44455, 468081), (52009, 400095), (80019, 260045), (133365, 156027)]