1998126904900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{89}}^2\times {\mathrm{51481}}^1$

素因数の和:51687

約数の個数: 162

約数和(自身を含む): 5101251453438

約数和(自身を除く): 3103124548538

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 89, 98, 100, 140, 175, 178, 196, 245, 350, 356, 445, 490, 623, 700, 890, 980, 1225, 1246, 1780, 2225, 2450, 2492, 3115, 4361, 4450, 4900, 6230, 7921, 8722, 8900, 12460, 15575, 15842, 17444, 21805, 31150, 31684, 39605, 43610, 51481, 55447, 62300, 79210, 87220, 102962, 109025, 110894, 158420, 198025, 205924, 218050, 221788, 257405, 277235, 360367, 388129, 396050, 436100, 514810, 554470, 720734, 776258, 792100, 1029620, 1108940, 1287025, 1386175, 1441468, 1552516, 1801835, 1940645, 2522569, 2574050, 2772350, 3603670, 3881290, 4581809, 5045138, 5148100, 5544700, 7207340, 7762580, 9009175, 9163618, 9703225, 10090276, 12612845, 18018350, 18327236, 19406450, 22909045, 25225690, 32072663, 36036700, 38812900, 45818090, 50451380, 63064225, 64145326, 91636180, 114545225, 126128450, 128290652, 160363315, 224508641, 229090450, 252256900, 320726630, 407781001, 449017282, 458180900, 641453260, 801816575, 815562002, 898034564, 1122543205, 1603633150, 1631124004, 2038905005, 2245086410, 2854467007, 3207266300, 4077810010, 4490172820, 5612716025, 5708934014, 8155620020, 10194525025, 11225432050, 11417868028, 14272335035, 19981269049, 20389050050, 22450864100, 28544670070, 39962538098, 40778100100, 57089340140, 71361675175, 79925076196, 99906345245, 142723350350, 199812690490, 285446700700, 399625380980, 499531726225, 999063452450, 1998126904900]

約数ペア:

[(1, 1998126904900), (2, 999063452450), (4, 499531726225), (5, 399625380980), (7, 285446700700), (10, 199812690490), (14, 142723350350), (20, 99906345245), (25, 79925076196), (28, 71361675175), (35, 57089340140), (49, 40778100100), (50, 39962538098), (70, 28544670070), (89, 22450864100), (98, 20389050050), (100, 19981269049), (140, 14272335035), (175, 11417868028), (178, 11225432050), (196, 10194525025), (245, 8155620020), (350, 5708934014), (356, 5612716025), (445, 4490172820), (490, 4077810010), (623, 3207266300), (700, 2854467007), (890, 2245086410), (980, 2038905005), (1225, 1631124004), (1246, 1603633150), (1780, 1122543205), (2225, 898034564), (2450, 815562002), (2492, 801816575), (3115, 641453260), (4361, 458180900), (4450, 449017282), (4900, 407781001), (6230, 320726630), (7921, 252256900), (8722, 229090450), (8900, 224508641), (12460, 160363315), (15575, 128290652), (15842, 126128450), (17444, 114545225), (21805, 91636180), (31150, 64145326), (31684, 63064225), (39605, 50451380), (43610, 45818090), (51481, 38812900), (55447, 36036700), (62300, 32072663), (79210, 25225690), (87220, 22909045), (102962, 19406450), (109025, 18327236), (110894, 18018350), (158420, 12612845), (198025, 10090276), (205924, 9703225), (218050, 9163618), (221788, 9009175), (257405, 7762580), (277235, 7207340), (360367, 5544700), (388129, 5148100), (396050, 5045138), (436100, 4581809), (514810, 3881290), (554470, 3603670), (720734, 2772350), (776258, 2574050), (792100, 2522569), (1029620, 1940645), (1108940, 1801835), (1287025, 1552516), (1386175, 1441468)]