649000480

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{127}}^1$

素因数の和:243

約数の個数: 144

約数和(自身を含む): 1667312640

約数和(自身を除く): 1018312160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 76, 80, 82, 95, 127, 152, 160, 164, 190, 205, 254, 304, 328, 380, 410, 508, 608, 635, 656, 760, 779, 820, 1016, 1270, 1312, 1520, 1558, 1640, 1681, 2032, 2413, 2540, 3040, 3116, 3280, 3362, 3895, 4064, 4826, 5080, 5207, 6232, 6560, 6724, 7790, 8405, 9652, 10160, 10414, 12065, 12464, 13448, 15580, 16810, 19304, 20320, 20828, 24130, 24928, 26035, 26896, 31160, 31939, 33620, 38608, 41656, 48260, 52070, 53792, 62320, 63878, 67240, 77216, 83312, 96520, 98933, 104140, 124640, 127756, 134480, 159695, 166624, 193040, 197866, 208280, 213487, 255512, 268960, 319390, 386080, 395732, 416560, 426974, 494665, 511024, 638780, 791464, 833120, 853948, 989330, 1022048, 1067435, 1277560, 1582928, 1707896, 1978660, 2134870, 2555120, 3165856, 3415792, 3957320, 4056253, 4269740, 5110240, 6831584, 7914640, 8112506, 8539480, 15829280, 16225012, 17078960, 20281265, 32450024, 34157920, 40562530, 64900048, 81125060, 129800096, 162250120, 324500240, 649000480]

約数ペア:

[(1, 649000480), (2, 324500240), (4, 162250120), (5, 129800096), (8, 81125060), (10, 64900048), (16, 40562530), (19, 34157920), (20, 32450024), (32, 20281265), (38, 17078960), (40, 16225012), (41, 15829280), (76, 8539480), (80, 8112506), (82, 7914640), (95, 6831584), (127, 5110240), (152, 4269740), (160, 4056253), (164, 3957320), (190, 3415792), (205, 3165856), (254, 2555120), (304, 2134870), (328, 1978660), (380, 1707896), (410, 1582928), (508, 1277560), (608, 1067435), (635, 1022048), (656, 989330), (760, 853948), (779, 833120), (820, 791464), (1016, 638780), (1270, 511024), (1312, 494665), (1520, 426974), (1558, 416560), (1640, 395732), (1681, 386080), (2032, 319390), (2413, 268960), (2540, 255512), (3040, 213487), (3116, 208280), (3280, 197866), (3362, 193040), (3895, 166624), (4064, 159695), (4826, 134480), (5080, 127756), (5207, 124640), (6232, 104140), (6560, 98933), (6724, 96520), (7790, 83312), (8405, 77216), (9652, 67240), (10160, 63878), (10414, 62320), (12065, 53792), (12464, 52070), (13448, 48260), (15580, 41656), (16810, 38608), (19304, 33620), (20320, 31939), (20828, 31160), (24130, 26896), (24928, 26035)]