81923380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53197}}^1$

素因数の和:53224

約数の個数: 48

約数和(自身を含む): 214494336

約数和(自身を除く): 132570956

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 53197, 106394, 212788, 265985, 372379, 531970, 585167, 744758, 1063940, 1170334, 1489516, 1861895, 2340668, 2925835, 3723790, 4096169, 5851670, 7447580, 8192338, 11703340, 16384676, 20480845, 40961690, 81923380]

約数ペア:

[(1, 81923380), (2, 40961690), (4, 20480845), (5, 16384676), (7, 11703340), (10, 8192338), (11, 7447580), (14, 5851670), (20, 4096169), (22, 3723790), (28, 2925835), (35, 2340668), (44, 1861895), (55, 1489516), (70, 1170334), (77, 1063940), (110, 744758), (140, 585167), (154, 531970), (220, 372379), (308, 265985), (385, 212788), (770, 106394), (1540, 53197)]