989539840

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:428

約数の個数: 160

約数和(自身を含む): 2522767104

約数和(自身を除く): 1533227264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 148, 155, 160, 185, 248, 256, 296, 310, 320, 337, 370, 496, 512, 592, 620, 640, 674, 740, 992, 1147, 1184, 1240, 1280, 1348, 1480, 1685, 1984, 2294, 2368, 2480, 2560, 2696, 2960, 3370, 3968, 4588, 4736, 4960, 5392, 5735, 5920, 6740, 7936, 9176, 9472, 9920, 10447, 10784, 11470, 11840, 12469, 13480, 15872, 18352, 18944, 19840, 20894, 21568, 22940, 23680, 24938, 26960, 36704, 39680, 41788, 43136, 45880, 47360, 49876, 52235, 53920, 62345, 73408, 79360, 83576, 86272, 91760, 94720, 99752, 104470, 107840, 124690, 146816, 167152, 172544, 183520, 199504, 208940, 215680, 249380, 293632, 334304, 367040, 386539, 399008, 417880, 431360, 498760, 587264, 668608, 734080, 773078, 798016, 835760, 862720, 997520, 1337216, 1468160, 1546156, 1596032, 1671520, 1932695, 1995040, 2674432, 2936320, 3092312, 3192064, 3343040, 3865390, 3990080, 5348864, 6184624, 6384128, 6686080, 7730780, 7980160, 12369248, 13372160, 15461560, 15960320, 24738496, 26744320, 30923120, 31920640, 49476992, 61846240, 98953984, 123692480, 197907968, 247384960, 494769920, 989539840]

約数ペア:

[(1, 989539840), (2, 494769920), (4, 247384960), (5, 197907968), (8, 123692480), (10, 98953984), (16, 61846240), (20, 49476992), (31, 31920640), (32, 30923120), (37, 26744320), (40, 24738496), (62, 15960320), (64, 15461560), (74, 13372160), (80, 12369248), (124, 7980160), (128, 7730780), (148, 6686080), (155, 6384128), (160, 6184624), (185, 5348864), (248, 3990080), (256, 3865390), (296, 3343040), (310, 3192064), (320, 3092312), (337, 2936320), (370, 2674432), (496, 1995040), (512, 1932695), (592, 1671520), (620, 1596032), (640, 1546156), (674, 1468160), (740, 1337216), (992, 997520), (1147, 862720), (1184, 835760), (1240, 798016), (1280, 773078), (1348, 734080), (1480, 668608), (1685, 587264), (1984, 498760), (2294, 431360), (2368, 417880), (2480, 399008), (2560, 386539), (2696, 367040), (2960, 334304), (3370, 293632), (3968, 249380), (4588, 215680), (4736, 208940), (4960, 199504), (5392, 183520), (5735, 172544), (5920, 167152), (6740, 146816), (7936, 124690), (9176, 107840), (9472, 104470), (9920, 99752), (10447, 94720), (10784, 91760), (11470, 86272), (11840, 83576), (12469, 79360), (13480, 73408), (15872, 62345), (18352, 53920), (18944, 52235), (19840, 49876), (20894, 47360), (21568, 45880), (22940, 43136), (23680, 41788), (24938, 39680), (26960, 36704)]