198657920

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:117

約数の個数: 192

約数和(自身を含む): 546944400

約数和(自身を除く): 348286480

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, 272, 304, 310, 320, 323, 340, 380, 496, 527, 544, 589, 608, 620, 640, 646, 680, 760, 961, 992, 1054, 1088, 1178, 1216, 1240, 1292, 1360, 1520, 1615, 1922, 1984, 2108, 2176, 2356, 2432, 2480, 2584, 2635, 2720, 2945, 3040, 3230, 3844, 3968, 4216, 4712, 4805, 4960, 5168, 5270, 5440, 5890, 6080, 6460, 7688, 8432, 9424, 9610, 9920, 10013, 10336, 10540, 10880, 11780, 12160, 12920, 15376, 16337, 16864, 18259, 18848, 19220, 19840, 20026, 20672, 21080, 23560, 25840, 30752, 32674, 33728, 36518, 37696, 38440, 40052, 41344, 42160, 47120, 50065, 51680, 61504, 65348, 67456, 73036, 75392, 76880, 80104, 81685, 84320, 91295, 94240, 100130, 103360, 123008, 130696, 146072, 153760, 160208, 163370, 168640, 182590, 188480, 200260, 206720, 261392, 292144, 307520, 310403, 320416, 326740, 337280, 365180, 376960, 400520, 522784, 584288, 615040, 620806, 640832, 653480, 730360, 801040, 1045568, 1168576, 1241612, 1281664, 1306960, 1460720, 1552015, 1602080, 2091136, 2337152, 2483224, 2613920, 2921440, 3104030, 3204160, 4966448, 5227840, 5842880, 6208060, 6408320, 9932896, 10455680, 11685760, 12416120, 19865792, 24832240, 39731584, 49664480, 99328960, 198657920]

約数ペア:

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