20199851140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{25229}}^1$

素因数の和:25314

約数の個数: 144

約数和(自身を含む): 53152545600

約数和(自身を除く): 32952694460

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 43, 49, 70, 76, 86, 95, 98, 133, 140, 172, 190, 196, 215, 245, 266, 301, 380, 430, 490, 532, 602, 665, 817, 860, 931, 980, 1204, 1330, 1505, 1634, 1862, 2107, 2660, 3010, 3268, 3724, 4085, 4214, 4655, 5719, 6020, 8170, 8428, 9310, 10535, 11438, 16340, 18620, 21070, 22876, 25229, 28595, 40033, 42140, 50458, 57190, 80066, 100916, 114380, 126145, 160132, 176603, 200165, 252290, 353206, 400330, 479351, 504580, 706412, 800660, 883015, 958702, 1084847, 1236221, 1766030, 1917404, 2169694, 2396755, 2472442, 3355457, 3532060, 4339388, 4793510, 4944884, 5424235, 6181105, 6710914, 7593929, 9587020, 10848470, 12362210, 13421828, 15187858, 16777285, 20612093, 21696940, 23488199, 24724420, 30375716, 33554570, 37969645, 41224186, 46976398, 53157503, 67109140, 75939290, 82448372, 93952796, 103060465, 106315006, 117440995, 144284651, 151878580, 206120930, 212630012, 234881990, 265787515, 288569302, 412241860, 469763980, 531575030, 577138604, 721423255, 1009992557, 1063150060, 1442846510, 2019985114, 2885693020, 4039970228, 5049962785, 10099925570, 20199851140]

約数ペア:

[(1, 20199851140), (2, 10099925570), (4, 5049962785), (5, 4039970228), (7, 2885693020), (10, 2019985114), (14, 1442846510), (19, 1063150060), (20, 1009992557), (28, 721423255), (35, 577138604), (38, 531575030), (43, 469763980), (49, 412241860), (70, 288569302), (76, 265787515), (86, 234881990), (95, 212630012), (98, 206120930), (133, 151878580), (140, 144284651), (172, 117440995), (190, 106315006), (196, 103060465), (215, 93952796), (245, 82448372), (266, 75939290), (301, 67109140), (380, 53157503), (430, 46976398), (490, 41224186), (532, 37969645), (602, 33554570), (665, 30375716), (817, 24724420), (860, 23488199), (931, 21696940), (980, 20612093), (1204, 16777285), (1330, 15187858), (1505, 13421828), (1634, 12362210), (1862, 10848470), (2107, 9587020), (2660, 7593929), (3010, 6710914), (3268, 6181105), (3724, 5424235), (4085, 4944884), (4214, 4793510), (4655, 4339388), (5719, 3532060), (6020, 3355457), (8170, 2472442), (8428, 2396755), (9310, 2169694), (10535, 1917404), (11438, 1766030), (16340, 1236221), (18620, 1084847), (21070, 958702), (22876, 883015), (25229, 800660), (28595, 706412), (40033, 504580), (42140, 479351), (50458, 400330), (57190, 353206), (80066, 252290), (100916, 200165), (114380, 176603), (126145, 160132)]