8563880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 21288960

約数和(自身を除く): 12725080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 383, 430, 520, 559, 766, 860, 1118, 1532, 1720, 1915, 2236, 2795, 3064, 3830, 4472, 4979, 5590, 7660, 9958, 11180, 15320, 16469, 19916, 22360, 24895, 32938, 39832, 49790, 65876, 82345, 99580, 131752, 164690, 199160, 214097, 329380, 428194, 658760, 856388, 1070485, 1712776, 2140970, 4281940, 8563880]

約数ペア:

[(1, 8563880), (2, 4281940), (4, 2140970), (5, 1712776), (8, 1070485), (10, 856388), (13, 658760), (20, 428194), (26, 329380), (40, 214097), (43, 199160), (52, 164690), (65, 131752), (86, 99580), (104, 82345), (130, 65876), (172, 49790), (215, 39832), (260, 32938), (344, 24895), (383, 22360), (430, 19916), (520, 16469), (559, 15320), (766, 11180), (860, 9958), (1118, 7660), (1532, 5590), (1720, 4979), (1915, 4472), (2236, 3830), (2795, 3064)]