28314180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:538

約数の個数: 144

約数和(自身を含む): 95921280

約数和(自身を除く): 67607100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 323, 340, 342, 380, 487, 510, 570, 612, 646, 684, 765, 855, 969, 974, 1020, 1140, 1292, 1461, 1530, 1615, 1710, 1938, 1948, 2435, 2907, 2922, 3060, 3230, 3420, 3876, 4383, 4845, 4870, 5814, 5844, 6460, 7305, 8279, 8766, 9253, 9690, 9740, 11628, 14535, 14610, 16558, 17532, 18506, 19380, 21915, 24837, 27759, 29070, 29220, 33116, 37012, 41395, 43830, 46265, 49674, 55518, 58140, 74511, 82790, 83277, 87660, 92530, 99348, 111036, 124185, 138795, 149022, 157301, 165580, 166554, 185060, 248370, 277590, 298044, 314602, 333108, 372555, 416385, 471903, 496740, 555180, 629204, 745110, 786505, 832770, 943806, 1415709, 1490220, 1573010, 1665540, 1887612, 2359515, 2831418, 3146020, 4719030, 5662836, 7078545, 9438060, 14157090, 28314180]

約数ペア:

[(1, 28314180), (2, 14157090), (3, 9438060), (4, 7078545), (5, 5662836), (6, 4719030), (9, 3146020), (10, 2831418), (12, 2359515), (15, 1887612), (17, 1665540), (18, 1573010), (19, 1490220), (20, 1415709), (30, 943806), (34, 832770), (36, 786505), (38, 745110), (45, 629204), (51, 555180), (57, 496740), (60, 471903), (68, 416385), (76, 372555), (85, 333108), (90, 314602), (95, 298044), (102, 277590), (114, 248370), (153, 185060), (170, 166554), (171, 165580), (180, 157301), (190, 149022), (204, 138795), (228, 124185), (255, 111036), (285, 99348), (306, 92530), (323, 87660), (340, 83277), (342, 82790), (380, 74511), (487, 58140), (510, 55518), (570, 49674), (612, 46265), (646, 43830), (684, 41395), (765, 37012), (855, 33116), (969, 29220), (974, 29070), (1020, 27759), (1140, 24837), (1292, 21915), (1461, 19380), (1530, 18506), (1615, 17532), (1710, 16558), (1938, 14610), (1948, 14535), (2435, 11628), (2907, 9740), (2922, 9690), (3060, 9253), (3230, 8766), (3420, 8279), (3876, 7305), (4383, 6460), (4845, 5844), (4870, 5814)]