20217961808

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{15173}}^1$

素因数の和:15372

約数の個数: 80

約数和(自身を含む): 43757931456

約数和(自身を除く): 23539969648

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 67, 88, 113, 134, 176, 226, 268, 452, 536, 737, 904, 1072, 1243, 1474, 1808, 2486, 2948, 4972, 5896, 7571, 9944, 11792, 15142, 15173, 19888, 30284, 30346, 60568, 60692, 83281, 121136, 121384, 166562, 166903, 242768, 333124, 333806, 666248, 667612, 1016591, 1332496, 1335224, 1714549, 2033182, 2670448, 3429098, 4066364, 6858196, 8132728, 11182501, 13716392, 16265456, 18860039, 22365002, 27432784, 37720078, 44730004, 75440156, 89460008, 114874783, 150880312, 178920016, 229749566, 301760624, 459499132, 918998264, 1263622613, 1837996528, 2527245226, 5054490452, 10108980904, 20217961808]

約数ペア:

[(1, 20217961808), (2, 10108980904), (4, 5054490452), (8, 2527245226), (11, 1837996528), (16, 1263622613), (22, 918998264), (44, 459499132), (67, 301760624), (88, 229749566), (113, 178920016), (134, 150880312), (176, 114874783), (226, 89460008), (268, 75440156), (452, 44730004), (536, 37720078), (737, 27432784), (904, 22365002), (1072, 18860039), (1243, 16265456), (1474, 13716392), (1808, 11182501), (2486, 8132728), (2948, 6858196), (4972, 4066364), (5896, 3429098), (7571, 2670448), (9944, 2033182), (11792, 1714549), (15142, 1335224), (15173, 1332496), (19888, 1016591), (30284, 667612), (30346, 666248), (60568, 333806), (60692, 333124), (83281, 242768), (121136, 166903), (121384, 166562)]