90399760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2389}}^1$

素因数の和:2456

約数の個数: 80

約数和(自身を含む): 234717120

約数和(自身を除く): 144317360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2365, 2389, 3440, 3784, 4730, 4778, 7568, 9460, 9556, 11945, 18920, 19112, 23890, 26279, 37840, 38224, 47780, 52558, 95560, 102727, 105116, 131395, 191120, 205454, 210232, 262790, 410908, 420464, 513635, 525580, 821816, 1027270, 1051160, 1129997, 1643632, 2054540, 2102320, 2259994, 4109080, 4519988, 5649985, 8218160, 9039976, 11299970, 18079952, 22599940, 45199880, 90399760]

約数ペア:

[(1, 90399760), (2, 45199880), (4, 22599940), (5, 18079952), (8, 11299970), (10, 9039976), (11, 8218160), (16, 5649985), (20, 4519988), (22, 4109080), (40, 2259994), (43, 2102320), (44, 2054540), (55, 1643632), (80, 1129997), (86, 1051160), (88, 1027270), (110, 821816), (172, 525580), (176, 513635), (215, 420464), (220, 410908), (344, 262790), (430, 210232), (440, 205454), (473, 191120), (688, 131395), (860, 105116), (880, 102727), (946, 95560), (1720, 52558), (1892, 47780), (2365, 38224), (2389, 37840), (3440, 26279), (3784, 23890), (4730, 19112), (4778, 18920), (7568, 11945), (9460, 9556)]