201945520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15679}}^1$

素因数の和:15722

約数の個数: 80

約数和(自身を含む): 559964160

約数和(自身を除く): 358018640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 15679, 31358, 62716, 78395, 109753, 125432, 156790, 219506, 250864, 313580, 360617, 439012, 548765, 627160, 721234, 878024, 1097530, 1254320, 1442468, 1756048, 1803085, 2195060, 2524319, 2884936, 3606170, 4390120, 5048638, 5769872, 7212340, 8780240, 10097276, 12621595, 14424680, 20194552, 25243190, 28849360, 40389104, 50486380, 100972760, 201945520]

約数ペア:

[(1, 201945520), (2, 100972760), (4, 50486380), (5, 40389104), (7, 28849360), (8, 25243190), (10, 20194552), (14, 14424680), (16, 12621595), (20, 10097276), (23, 8780240), (28, 7212340), (35, 5769872), (40, 5048638), (46, 4390120), (56, 3606170), (70, 2884936), (80, 2524319), (92, 2195060), (112, 1803085), (115, 1756048), (140, 1442468), (161, 1254320), (184, 1097530), (230, 878024), (280, 721234), (322, 627160), (368, 548765), (460, 439012), (560, 360617), (644, 313580), (805, 250864), (920, 219506), (1288, 156790), (1610, 125432), (1840, 109753), (2576, 78395), (3220, 62716), (6440, 31358), (12880, 15679)]