30780640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17489}}^1$

素因数の和:17515

約数の個数: 48

約数和(自身を含む): 79334640

約数和(自身を除く): 48554000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 17489, 34978, 69956, 87445, 139912, 174890, 192379, 279824, 349780, 384758, 559648, 699560, 769516, 961895, 1399120, 1539032, 1923790, 2798240, 3078064, 3847580, 6156128, 7695160, 15390320, 30780640]

約数ペア:

[(1, 30780640), (2, 15390320), (4, 7695160), (5, 6156128), (8, 3847580), (10, 3078064), (11, 2798240), (16, 1923790), (20, 1539032), (22, 1399120), (32, 961895), (40, 769516), (44, 699560), (55, 559648), (80, 384758), (88, 349780), (110, 279824), (160, 192379), (176, 174890), (220, 139912), (352, 87445), (440, 69956), (880, 34978), (1760, 17489)]