257901440

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:332

約数の個数: 128

約数和(自身を含む): 658022400

約数和(自身を除く): 400120960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 127, 128, 152, 160, 167, 190, 254, 304, 320, 334, 380, 508, 608, 635, 640, 668, 760, 835, 1016, 1216, 1270, 1336, 1520, 1670, 2032, 2413, 2432, 2540, 2672, 3040, 3173, 3340, 4064, 4826, 5080, 5344, 6080, 6346, 6680, 8128, 9652, 10160, 10688, 12065, 12160, 12692, 13360, 15865, 16256, 19304, 20320, 21209, 21376, 24130, 25384, 26720, 31730, 38608, 40640, 42418, 48260, 50768, 53440, 63460, 77216, 81280, 84836, 96520, 101536, 106045, 106880, 126920, 154432, 169672, 193040, 203072, 212090, 253840, 308864, 339344, 386080, 402971, 406144, 424180, 507680, 678688, 772160, 805942, 848360, 1015360, 1357376, 1544320, 1611884, 1696720, 2014855, 2030720, 2714752, 3223768, 3393440, 4029710, 6447536, 6786880, 8059420, 12895072, 13573760, 16118840, 25790144, 32237680, 51580288, 64475360, 128950720, 257901440]

約数ペア:

[(1, 257901440), (2, 128950720), (4, 64475360), (5, 51580288), (8, 32237680), (10, 25790144), (16, 16118840), (19, 13573760), (20, 12895072), (32, 8059420), (38, 6786880), (40, 6447536), (64, 4029710), (76, 3393440), (80, 3223768), (95, 2714752), (127, 2030720), (128, 2014855), (152, 1696720), (160, 1611884), (167, 1544320), (190, 1357376), (254, 1015360), (304, 848360), (320, 805942), (334, 772160), (380, 678688), (508, 507680), (608, 424180), (635, 406144), (640, 402971), (668, 386080), (760, 339344), (835, 308864), (1016, 253840), (1216, 212090), (1270, 203072), (1336, 193040), (1520, 169672), (1670, 154432), (2032, 126920), (2413, 106880), (2432, 106045), (2540, 101536), (2672, 96520), (3040, 84836), (3173, 81280), (3340, 77216), (4064, 63460), (4826, 53440), (5080, 50768), (5344, 48260), (6080, 42418), (6346, 40640), (6680, 38608), (8128, 31730), (9652, 26720), (10160, 25384), (10688, 24130), (12065, 21376), (12160, 21209), (12692, 20320), (13360, 19304), (15865, 16256)]