399984414340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{21809401}}^1$

素因数の和:21809548

約数の個数: 48

約数和(自身を含む): 967290597504

約数和(自身を除く): 567306183164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1834, 2620, 3668, 4585, 9170, 18340, 21809401, 43618802, 87237604, 109047005, 152665807, 218094010, 305331614, 436188020, 610663228, 763329035, 1526658070, 2857031531, 3053316140, 5714063062, 11428126124, 14285157655, 19999220717, 28570315310, 39998441434, 57140630620, 79996882868, 99996103585, 199992207170, 399984414340]

約数ペア:

[(1, 399984414340), (2, 199992207170), (4, 99996103585), (5, 79996882868), (7, 57140630620), (10, 39998441434), (14, 28570315310), (20, 19999220717), (28, 14285157655), (35, 11428126124), (70, 5714063062), (131, 3053316140), (140, 2857031531), (262, 1526658070), (524, 763329035), (655, 610663228), (917, 436188020), (1310, 305331614), (1834, 218094010), (2620, 152665807), (3668, 109047005), (4585, 87237604), (9170, 43618802), (18340, 21809401)]