395193820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 1023865920

約数和(自身を除く): 628672100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 89, 92, 98, 115, 140, 161, 178, 196, 197, 230, 245, 322, 356, 394, 445, 460, 490, 623, 644, 788, 805, 890, 980, 985, 1127, 1246, 1379, 1610, 1780, 1970, 2047, 2254, 2492, 2758, 3115, 3220, 3940, 4094, 4361, 4508, 4531, 5516, 5635, 6230, 6895, 8188, 8722, 9062, 9653, 10235, 11270, 12460, 13790, 14329, 17444, 17533, 18124, 19306, 20470, 21805, 22540, 22655, 27580, 28658, 31717, 35066, 38612, 40940, 43610, 45310, 48265, 57316, 63434, 70132, 71645, 87220, 87665, 90620, 96530, 100303, 122731, 126868, 143290, 158585, 175330, 193060, 200606, 222019, 245462, 286580, 317170, 350660, 401212, 403259, 444038, 490924, 501515, 613655, 634340, 806518, 859117, 888076, 1003030, 1110095, 1227310, 1613036, 1718234, 2006060, 2016295, 2220190, 2454620, 2822813, 3436468, 4032590, 4295585, 4440380, 5645626, 8065180, 8591170, 11291252, 14114065, 17182340, 19759691, 28228130, 39519382, 56456260, 79038764, 98798455, 197596910, 395193820]

約数ペア:

[(1, 395193820), (2, 197596910), (4, 98798455), (5, 79038764), (7, 56456260), (10, 39519382), (14, 28228130), (20, 19759691), (23, 17182340), (28, 14114065), (35, 11291252), (46, 8591170), (49, 8065180), (70, 5645626), (89, 4440380), (92, 4295585), (98, 4032590), (115, 3436468), (140, 2822813), (161, 2454620), (178, 2220190), (196, 2016295), (197, 2006060), (230, 1718234), (245, 1613036), (322, 1227310), (356, 1110095), (394, 1003030), (445, 888076), (460, 859117), (490, 806518), (623, 634340), (644, 613655), (788, 501515), (805, 490924), (890, 444038), (980, 403259), (985, 401212), (1127, 350660), (1246, 317170), (1379, 286580), (1610, 245462), (1780, 222019), (1970, 200606), (2047, 193060), (2254, 175330), (2492, 158585), (2758, 143290), (3115, 126868), (3220, 122731), (3940, 100303), (4094, 96530), (4361, 90620), (4508, 87665), (4531, 87220), (5516, 71645), (5635, 70132), (6230, 63434), (6895, 57316), (8188, 48265), (8722, 45310), (9062, 43610), (9653, 40940), (10235, 38612), (11270, 35066), (12460, 31717), (13790, 28658), (14329, 27580), (17444, 22655), (17533, 22540), (18124, 21805), (19306, 20470)]