20121986720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{170641}}^1$

素因数の和:170734

約数の個数: 96

約数和(自身を含む): 52634183616

約数和(自身を除く): 32512196896

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 67, 80, 88, 110, 134, 160, 176, 220, 268, 335, 352, 440, 536, 670, 737, 880, 1072, 1340, 1474, 1760, 2144, 2680, 2948, 3685, 5360, 5896, 7370, 10720, 11792, 14740, 23584, 29480, 58960, 117920, 170641, 341282, 682564, 853205, 1365128, 1706410, 1877051, 2730256, 3412820, 3754102, 5460512, 6825640, 7508204, 9385255, 11432947, 13651280, 15016408, 18770510, 22865894, 27302560, 30032816, 37541020, 45731788, 57164735, 60065632, 75082040, 91463576, 114329470, 125762417, 150164080, 182927152, 228658940, 251524834, 300328160, 365854304, 457317880, 503049668, 628812085, 914635760, 1006099336, 1257624170, 1829271520, 2012198672, 2515248340, 4024397344, 5030496680, 10060993360, 20121986720]

約数ペア:

[(1, 20121986720), (2, 10060993360), (4, 5030496680), (5, 4024397344), (8, 2515248340), (10, 2012198672), (11, 1829271520), (16, 1257624170), (20, 1006099336), (22, 914635760), (32, 628812085), (40, 503049668), (44, 457317880), (55, 365854304), (67, 300328160), (80, 251524834), (88, 228658940), (110, 182927152), (134, 150164080), (160, 125762417), (176, 114329470), (220, 91463576), (268, 75082040), (335, 60065632), (352, 57164735), (440, 45731788), (536, 37541020), (670, 30032816), (737, 27302560), (880, 22865894), (1072, 18770510), (1340, 15016408), (1474, 13651280), (1760, 11432947), (2144, 9385255), (2680, 7508204), (2948, 6825640), (3685, 5460512), (5360, 3754102), (5896, 3412820), (7370, 2730256), (10720, 1877051), (11792, 1706410), (14740, 1365128), (23584, 853205), (29480, 682564), (58960, 341282), (117920, 170641)]