400956815

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 616605696

約数和(自身を除く): 215648881

約数列:

[1, 5, 7, 17, 23, 35, 83, 85, 115, 119, 161, 353, 391, 415, 581, 595, 805, 1411, 1765, 1909, 1955, 2471, 2737, 2905, 6001, 7055, 8119, 9545, 9877, 12355, 13363, 13685, 29299, 30005, 32453, 40595, 42007, 49385, 56833, 66815, 138023, 146495, 162265, 205093, 210035, 227171, 284165, 498083, 673877, 690115, 966161, 1025465, 1135855, 2490415, 3369385, 3486581, 4717139, 4830805, 11455909, 17432905, 23585695, 57279545, 80191363, 400956815]

約数ペア:

[(1, 400956815), (5, 80191363), (7, 57279545), (17, 23585695), (23, 17432905), (35, 11455909), (83, 4830805), (85, 4717139), (115, 3486581), (119, 3369385), (161, 2490415), (353, 1135855), (391, 1025465), (415, 966161), (581, 690115), (595, 673877), (805, 498083), (1411, 284165), (1765, 227171), (1909, 210035), (1955, 205093), (2471, 162265), (2737, 146495), (2905, 138023), (6001, 66815), (7055, 56833), (8119, 49385), (9545, 42007), (9877, 40595), (12355, 32453), (13363, 30005), (13685, 29299)]