1400942080

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:320

約数の個数: 160

約数和(自身を含む): 3519774720

約数和(自身を除く): 2118832640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 139, 155, 160, 248, 254, 256, 278, 310, 320, 496, 508, 512, 556, 620, 635, 640, 695, 992, 1016, 1112, 1240, 1270, 1280, 1390, 1984, 2032, 2224, 2480, 2540, 2560, 2780, 3937, 3968, 4064, 4309, 4448, 4960, 5080, 5560, 7874, 7936, 8128, 8618, 8896, 9920, 10160, 11120, 15748, 15872, 16256, 17236, 17653, 17792, 19685, 19840, 20320, 21545, 22240, 31496, 32512, 34472, 35306, 35584, 39370, 39680, 40640, 43090, 44480, 62992, 65024, 68944, 70612, 71168, 78740, 79360, 81280, 86180, 88265, 88960, 125984, 137888, 141224, 157480, 162560, 172360, 176530, 177920, 251968, 275776, 282448, 314960, 325120, 344720, 353060, 355840, 503936, 547243, 551552, 564896, 629920, 689440, 706120, 1007872, 1094486, 1103104, 1129792, 1259840, 1378880, 1412240, 2015744, 2188972, 2206208, 2259584, 2519680, 2736215, 2757760, 2824480, 4377944, 4519168, 5039360, 5472430, 5515520, 5648960, 8755888, 9038336, 10078720, 10944860, 11031040, 11297920, 17511776, 21889720, 22595840, 35023552, 43779440, 45191680, 70047104, 87558880, 140094208, 175117760, 280188416, 350235520, 700471040, 1400942080]

約数ペア:

[(1, 1400942080), (2, 700471040), (4, 350235520), (5, 280188416), (8, 175117760), (10, 140094208), (16, 87558880), (20, 70047104), (31, 45191680), (32, 43779440), (40, 35023552), (62, 22595840), (64, 21889720), (80, 17511776), (124, 11297920), (127, 11031040), (128, 10944860), (139, 10078720), (155, 9038336), (160, 8755888), (248, 5648960), (254, 5515520), (256, 5472430), (278, 5039360), (310, 4519168), (320, 4377944), (496, 2824480), (508, 2757760), (512, 2736215), (556, 2519680), (620, 2259584), (635, 2206208), (640, 2188972), (695, 2015744), (992, 1412240), (1016, 1378880), (1112, 1259840), (1240, 1129792), (1270, 1103104), (1280, 1094486), (1390, 1007872), (1984, 706120), (2032, 689440), (2224, 629920), (2480, 564896), (2540, 551552), (2560, 547243), (2780, 503936), (3937, 355840), (3968, 353060), (4064, 344720), (4309, 325120), (4448, 314960), (4960, 282448), (5080, 275776), (5560, 251968), (7874, 177920), (7936, 176530), (8128, 172360), (8618, 162560), (8896, 157480), (9920, 141224), (10160, 137888), (11120, 125984), (15748, 88960), (15872, 88265), (16256, 86180), (17236, 81280), (17653, 79360), (17792, 78740), (19685, 71168), (19840, 70612), (20320, 68944), (21545, 65024), (22240, 62992), (31496, 44480), (32512, 43090), (34472, 40640), (35306, 39680), (35584, 39370)]