813856640

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:213

約数の個数: 256

約数和(自身を含む): 2256076800

約数和(自身を除く): 1442220160

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, 127, 128, 136, 152, 155, 160, 170, 190, 248, 254, 272, 304, 310, 320, 323, 340, 380, 496, 508, 527, 544, 589, 608, 620, 635, 640, 646, 680, 760, 992, 1016, 1054, 1088, 1178, 1216, 1240, 1270, 1292, 1360, 1520, 1615, 1984, 2032, 2108, 2159, 2176, 2356, 2413, 2432, 2480, 2540, 2584, 2635, 2720, 2945, 3040, 3230, 3937, 3968, 4064, 4216, 4318, 4712, 4826, 4960, 5080, 5168, 5270, 5440, 5890, 6080, 6460, 7874, 8128, 8432, 8636, 9424, 9652, 9920, 10013, 10160, 10336, 10540, 10795, 10880, 11780, 12065, 12160, 12920, 15748, 16256, 16864, 17272, 18848, 19304, 19685, 19840, 20026, 20320, 20672, 21080, 21590, 23560, 24130, 25840, 31496, 33728, 34544, 37696, 38608, 39370, 40052, 40640, 41021, 41344, 42160, 43180, 47120, 48260, 50065, 51680, 62992, 66929, 67456, 69088, 74803, 75392, 77216, 78740, 80104, 81280, 82042, 84320, 86360, 94240, 96520, 100130, 103360, 125984, 133858, 138176, 149606, 154432, 157480, 160208, 164084, 168640, 172720, 188480, 193040, 200260, 205105, 206720, 251968, 267716, 276352, 299212, 308864, 314960, 320416, 328168, 334645, 337280, 345440, 374015, 376960, 386080, 400520, 410210, 503936, 535432, 598424, 629920, 640832, 656336, 669290, 690880, 748030, 772160, 801040, 820420, 1070864, 1196848, 1259840, 1271651, 1281664, 1312672, 1338580, 1381760, 1496060, 1544320, 1602080, 1640840, 2141728, 2393696, 2519680, 2543302, 2625344, 2677160, 2992120, 3204160, 3281680, 4283456, 4787392, 5086604, 5250688, 5354320, 5984240, 6358255, 6408320, 6563360, 8566912, 9574784, 10173208, 10708640, 11968480, 12716510, 13126720, 20346416, 21417280, 23936960, 25433020, 26253440, 40692832, 42834560, 47873920, 50866040, 81385664, 101732080, 162771328, 203464160, 406928320, 813856640]

約数ペア:

[(1, 813856640), (2, 406928320), (4, 203464160), (5, 162771328), (8, 101732080), (10, 81385664), (16, 50866040), (17, 47873920), (19, 42834560), (20, 40692832), (31, 26253440), (32, 25433020), (34, 23936960), (38, 21417280), (40, 20346416), (62, 13126720), (64, 12716510), (68, 11968480), (76, 10708640), (80, 10173208), (85, 9574784), (95, 8566912), (124, 6563360), (127, 6408320), (128, 6358255), (136, 5984240), (152, 5354320), (155, 5250688), (160, 5086604), (170, 4787392), (190, 4283456), (248, 3281680), (254, 3204160), (272, 2992120), (304, 2677160), (310, 2625344), (320, 2543302), (323, 2519680), (340, 2393696), (380, 2141728), (496, 1640840), (508, 1602080), (527, 1544320), (544, 1496060), (589, 1381760), (608, 1338580), (620, 1312672), (635, 1281664), (640, 1271651), (646, 1259840), (680, 1196848), (760, 1070864), (992, 820420), (1016, 801040), (1054, 772160), (1088, 748030), (1178, 690880), (1216, 669290), (1240, 656336), (1270, 640832), (1292, 629920), (1360, 598424), (1520, 535432), (1615, 503936), (1984, 410210), (2032, 400520), (2108, 386080), (2159, 376960), (2176, 374015), (2356, 345440), (2413, 337280), (2432, 334645), (2480, 328168), (2540, 320416), (2584, 314960), (2635, 308864), (2720, 299212), (2945, 276352), (3040, 267716), (3230, 251968), (3937, 206720), (3968, 205105), (4064, 200260), (4216, 193040), (4318, 188480), (4712, 172720), (4826, 168640), (4960, 164084), (5080, 160208), (5168, 157480), (5270, 154432), (5440, 149606), (5890, 138176), (6080, 133858), (6460, 125984), (7874, 103360), (8128, 100130), (8432, 96520), (8636, 94240), (9424, 86360), (9652, 84320), (9920, 82042), (10013, 81280), (10160, 80104), (10336, 78740), (10540, 77216), (10795, 75392), (10880, 74803), (11780, 69088), (12065, 67456), (12160, 66929), (12920, 62992), (15748, 51680), (16256, 50065), (16864, 48260), (17272, 47120), (18848, 43180), (19304, 42160), (19685, 41344), (19840, 41021), (20026, 40640), (20320, 40052), (20672, 39370), (21080, 38608), (21590, 37696), (23560, 34544), (24130, 33728), (25840, 31496)]