397315840

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:119

約数の個数: 216

約数和(自身を含む): 1096033680

約数和(自身を除く): 698717840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 32, 34, 38, 40, 62, 64, 68, 76, 80, 85, 95, 124, 128, 136, 152, 155, 160, 170, 190, 248, 256, 272, 304, 310, 320, 323, 340, 380, 496, 527, 544, 589, 608, 620, 640, 646, 680, 760, 961, 992, 1054, 1088, 1178, 1216, 1240, 1280, 1292, 1360, 1520, 1615, 1922, 1984, 2108, 2176, 2356, 2432, 2480, 2584, 2635, 2720, 2945, 3040, 3230, 3844, 3968, 4216, 4352, 4712, 4805, 4864, 4960, 5168, 5270, 5440, 5890, 6080, 6460, 7688, 7936, 8432, 9424, 9610, 9920, 10013, 10336, 10540, 10880, 11780, 12160, 12920, 15376, 16337, 16864, 18259, 18848, 19220, 19840, 20026, 20672, 21080, 21760, 23560, 24320, 25840, 30752, 32674, 33728, 36518, 37696, 38440, 39680, 40052, 41344, 42160, 47120, 50065, 51680, 61504, 65348, 67456, 73036, 75392, 76880, 80104, 81685, 82688, 84320, 91295, 94240, 100130, 103360, 123008, 130696, 134912, 146072, 150784, 153760, 160208, 163370, 168640, 182590, 188480, 200260, 206720, 246016, 261392, 292144, 307520, 310403, 320416, 326740, 337280, 365180, 376960, 400520, 413440, 522784, 584288, 615040, 620806, 640832, 653480, 674560, 730360, 753920, 801040, 1045568, 1168576, 1230080, 1241612, 1281664, 1306960, 1460720, 1552015, 1602080, 2091136, 2337152, 2483224, 2563328, 2613920, 2921440, 3104030, 3204160, 4182272, 4674304, 4966448, 5227840, 5842880, 6208060, 6408320, 9932896, 10455680, 11685760, 12416120, 12816640, 19865792, 20911360, 23371520, 24832240, 39731584, 49664480, 79463168, 99328960, 198657920, 397315840]

約数ペア:

[(1, 397315840), (2, 198657920), (4, 99328960), (5, 79463168), (8, 49664480), (10, 39731584), (16, 24832240), (17, 23371520), (19, 20911360), (20, 19865792), (31, 12816640), (32, 12416120), (34, 11685760), (38, 10455680), (40, 9932896), (62, 6408320), (64, 6208060), (68, 5842880), (76, 5227840), (80, 4966448), (85, 4674304), (95, 4182272), (124, 3204160), (128, 3104030), (136, 2921440), (152, 2613920), (155, 2563328), (160, 2483224), (170, 2337152), (190, 2091136), (248, 1602080), (256, 1552015), (272, 1460720), (304, 1306960), (310, 1281664), (320, 1241612), (323, 1230080), (340, 1168576), (380, 1045568), (496, 801040), (527, 753920), (544, 730360), (589, 674560), (608, 653480), (620, 640832), (640, 620806), (646, 615040), (680, 584288), (760, 522784), (961, 413440), (992, 400520), (1054, 376960), (1088, 365180), (1178, 337280), (1216, 326740), (1240, 320416), (1280, 310403), (1292, 307520), (1360, 292144), (1520, 261392), (1615, 246016), (1922, 206720), (1984, 200260), (2108, 188480), (2176, 182590), (2356, 168640), (2432, 163370), (2480, 160208), (2584, 153760), (2635, 150784), (2720, 146072), (2945, 134912), (3040, 130696), (3230, 123008), (3844, 103360), (3968, 100130), (4216, 94240), (4352, 91295), (4712, 84320), (4805, 82688), (4864, 81685), (4960, 80104), (5168, 76880), (5270, 75392), (5440, 73036), (5890, 67456), (6080, 65348), (6460, 61504), (7688, 51680), (7936, 50065), (8432, 47120), (9424, 42160), (9610, 41344), (9920, 40052), (10013, 39680), (10336, 38440), (10540, 37696), (10880, 36518), (11780, 33728), (12160, 32674), (12920, 30752), (15376, 25840), (16337, 24320), (16864, 23560), (18259, 21760), (18848, 21080), (19220, 20672), (19840, 20026)]