1780771840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1229}}^1$

素因数の和:1537

約数の個数: 88

約数和(自身を含む): 4290348240

約数和(自身を除く): 2509576400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 283, 320, 512, 566, 640, 1024, 1132, 1229, 1280, 1415, 2264, 2458, 2560, 2830, 4528, 4916, 5120, 5660, 6145, 9056, 9832, 11320, 12290, 18112, 19664, 22640, 24580, 36224, 39328, 45280, 49160, 72448, 78656, 90560, 98320, 144896, 157312, 181120, 196640, 289792, 314624, 347807, 362240, 393280, 629248, 695614, 724480, 786560, 1258496, 1391228, 1448960, 1573120, 1739035, 2782456, 3146240, 3478070, 5564912, 6292480, 6956140, 11129824, 13912280, 22259648, 27824560, 44519296, 55649120, 89038592, 111298240, 178077184, 222596480, 356154368, 445192960, 890385920, 1780771840]

約数ペア:

[(1, 1780771840), (2, 890385920), (4, 445192960), (5, 356154368), (8, 222596480), (10, 178077184), (16, 111298240), (20, 89038592), (32, 55649120), (40, 44519296), (64, 27824560), (80, 22259648), (128, 13912280), (160, 11129824), (256, 6956140), (283, 6292480), (320, 5564912), (512, 3478070), (566, 3146240), (640, 2782456), (1024, 1739035), (1132, 1573120), (1229, 1448960), (1280, 1391228), (1415, 1258496), (2264, 786560), (2458, 724480), (2560, 695614), (2830, 629248), (4528, 393280), (4916, 362240), (5120, 347807), (5660, 314624), (6145, 289792), (9056, 196640), (9832, 181120), (11320, 157312), (12290, 144896), (18112, 98320), (19664, 90560), (22640, 78656), (24580, 72448), (36224, 49160), (39328, 45280)]