28038880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5653}}^1$

素因数の和:5699

約数の個数: 48

約数和(自身を含む): 68390784

約数和(自身を除く): 40351904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 5653, 11306, 22612, 28265, 45224, 56530, 90448, 113060, 175243, 180896, 226120, 350486, 452240, 700972, 876215, 904480, 1401944, 1752430, 2803888, 3504860, 5607776, 7009720, 14019440, 28038880]

約数ペア:

[(1, 28038880), (2, 14019440), (4, 7009720), (5, 5607776), (8, 3504860), (10, 2803888), (16, 1752430), (20, 1401944), (31, 904480), (32, 876215), (40, 700972), (62, 452240), (80, 350486), (124, 226120), (155, 180896), (160, 175243), (248, 113060), (310, 90448), (496, 56530), (620, 45224), (992, 28265), (1240, 22612), (2480, 11306), (4960, 5653)]