1663618720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:331

約数の個数: 192

約数和(自身を含む): 4335206400

約数和(自身を除く): 2671587680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 95, 124, 127, 139, 152, 155, 160, 190, 248, 254, 278, 304, 310, 380, 496, 508, 556, 589, 608, 620, 635, 695, 760, 992, 1016, 1112, 1178, 1240, 1270, 1390, 1520, 2032, 2224, 2356, 2413, 2480, 2540, 2641, 2780, 2945, 3040, 3937, 4064, 4309, 4448, 4712, 4826, 4960, 5080, 5282, 5560, 5890, 7874, 8618, 9424, 9652, 10160, 10564, 11120, 11780, 12065, 13205, 15748, 17236, 17653, 18848, 19304, 19685, 20320, 21128, 21545, 22240, 23560, 24130, 26410, 31496, 34472, 35306, 38608, 39370, 42256, 43090, 47120, 48260, 52820, 62992, 68944, 70612, 74803, 77216, 78740, 81871, 84512, 86180, 88265, 94240, 96520, 105640, 125984, 137888, 141224, 149606, 157480, 163742, 172360, 176530, 193040, 211280, 282448, 299212, 314960, 327484, 335407, 344720, 353060, 374015, 386080, 409355, 422560, 547243, 564896, 598424, 629920, 654968, 670814, 689440, 706120, 748030, 818710, 1094486, 1196848, 1309936, 1341628, 1412240, 1496060, 1637420, 1677035, 2188972, 2393696, 2619872, 2683256, 2736215, 2824480, 2992120, 3274840, 3354070, 4377944, 5366512, 5472430, 5984240, 6549680, 6708140, 8755888, 10397617, 10733024, 10944860, 11968480, 13099360, 13416280, 17511776, 20795234, 21889720, 26832560, 41590468, 43779440, 51988085, 53665120, 83180936, 87558880, 103976170, 166361872, 207952340, 332723744, 415904680, 831809360, 1663618720]

約数ペア:

[(1, 1663618720), (2, 831809360), (4, 415904680), (5, 332723744), (8, 207952340), (10, 166361872), (16, 103976170), (19, 87558880), (20, 83180936), (31, 53665120), (32, 51988085), (38, 43779440), (40, 41590468), (62, 26832560), (76, 21889720), (80, 20795234), (95, 17511776), (124, 13416280), (127, 13099360), (139, 11968480), (152, 10944860), (155, 10733024), (160, 10397617), (190, 8755888), (248, 6708140), (254, 6549680), (278, 5984240), (304, 5472430), (310, 5366512), (380, 4377944), (496, 3354070), (508, 3274840), (556, 2992120), (589, 2824480), (608, 2736215), (620, 2683256), (635, 2619872), (695, 2393696), (760, 2188972), (992, 1677035), (1016, 1637420), (1112, 1496060), (1178, 1412240), (1240, 1341628), (1270, 1309936), (1390, 1196848), (1520, 1094486), (2032, 818710), (2224, 748030), (2356, 706120), (2413, 689440), (2480, 670814), (2540, 654968), (2641, 629920), (2780, 598424), (2945, 564896), (3040, 547243), (3937, 422560), (4064, 409355), (4309, 386080), (4448, 374015), (4712, 353060), (4826, 344720), (4960, 335407), (5080, 327484), (5282, 314960), (5560, 299212), (5890, 282448), (7874, 211280), (8618, 193040), (9424, 176530), (9652, 172360), (10160, 163742), (10564, 157480), (11120, 149606), (11780, 141224), (12065, 137888), (13205, 125984), (15748, 105640), (17236, 96520), (17653, 94240), (18848, 88265), (19304, 86180), (19685, 84512), (20320, 81871), (21128, 78740), (21545, 77216), (22240, 74803), (23560, 70612), (24130, 68944), (26410, 62992), (31496, 52820), (34472, 48260), (35306, 47120), (38608, 43090), (39370, 42256)]