78001280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{757}}^1$

素因数の和:806

約数の個数: 128

約数和(自身を含む): 222670080

約数和(自身を除く): 144668800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 448, 460, 560, 640, 644, 736, 757, 805, 896, 920, 1120, 1288, 1472, 1514, 1610, 1840, 2240, 2576, 2944, 3028, 3220, 3680, 3785, 4480, 5152, 5299, 6056, 6440, 7360, 7570, 10304, 10598, 12112, 12880, 14720, 15140, 17411, 20608, 21196, 24224, 25760, 26495, 30280, 34822, 42392, 48448, 51520, 52990, 60560, 69644, 84784, 87055, 96896, 103040, 105980, 121120, 121877, 139288, 169568, 174110, 211960, 242240, 243754, 278576, 339136, 348220, 423920, 484480, 487508, 557152, 609385, 678272, 696440, 847840, 975016, 1114304, 1218770, 1392880, 1695680, 1950032, 2228608, 2437540, 2785760, 3391360, 3900064, 4875080, 5571520, 7800128, 9750160, 11143040, 15600256, 19500320, 39000640, 78001280]

約数ペア:

[(1, 78001280), (2, 39000640), (4, 19500320), (5, 15600256), (7, 11143040), (8, 9750160), (10, 7800128), (14, 5571520), (16, 4875080), (20, 3900064), (23, 3391360), (28, 2785760), (32, 2437540), (35, 2228608), (40, 1950032), (46, 1695680), (56, 1392880), (64, 1218770), (70, 1114304), (80, 975016), (92, 847840), (112, 696440), (115, 678272), (128, 609385), (140, 557152), (160, 487508), (161, 484480), (184, 423920), (224, 348220), (230, 339136), (280, 278576), (320, 243754), (322, 242240), (368, 211960), (448, 174110), (460, 169568), (560, 139288), (640, 121877), (644, 121120), (736, 105980), (757, 103040), (805, 96896), (896, 87055), (920, 84784), (1120, 69644), (1288, 60560), (1472, 52990), (1514, 51520), (1610, 48448), (1840, 42392), (2240, 34822), (2576, 30280), (2944, 26495), (3028, 25760), (3220, 24224), (3680, 21196), (3785, 20608), (4480, 17411), (5152, 15140), (5299, 14720), (6056, 12880), (6440, 12112), (7360, 10598), (7570, 10304)]