211154720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1171}}^1$

素因数の和:1223

約数の個数: 144

約数和(自身を含む): 606045888

約数和(自身を除く): 394891168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 224, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 736, 784, 805, 920, 980, 1120, 1127, 1171, 1288, 1568, 1610, 1840, 1960, 2254, 2342, 2576, 3220, 3680, 3920, 4508, 4684, 5152, 5635, 5855, 6440, 7840, 8197, 9016, 9368, 11270, 11710, 12880, 16394, 18032, 18736, 22540, 23420, 25760, 26933, 32788, 36064, 37472, 40985, 45080, 46840, 53866, 57379, 65576, 81970, 90160, 93680, 107732, 114758, 131152, 134665, 163940, 180320, 187360, 188531, 215464, 229516, 262304, 269330, 286895, 327880, 377062, 430928, 459032, 538660, 573790, 655760, 754124, 861856, 918064, 942655, 1077320, 1147580, 1311520, 1319717, 1508248, 1836128, 1885310, 2154640, 2295160, 2639434, 3016496, 3770620, 4309280, 4590320, 5278868, 6032992, 6598585, 7541240, 9180640, 10557736, 13197170, 15082480, 21115472, 26394340, 30164960, 42230944, 52788680, 105577360, 211154720]

約数ペア:

[(1, 211154720), (2, 105577360), (4, 52788680), (5, 42230944), (7, 30164960), (8, 26394340), (10, 21115472), (14, 15082480), (16, 13197170), (20, 10557736), (23, 9180640), (28, 7541240), (32, 6598585), (35, 6032992), (40, 5278868), (46, 4590320), (49, 4309280), (56, 3770620), (70, 3016496), (80, 2639434), (92, 2295160), (98, 2154640), (112, 1885310), (115, 1836128), (140, 1508248), (160, 1319717), (161, 1311520), (184, 1147580), (196, 1077320), (224, 942655), (230, 918064), (245, 861856), (280, 754124), (322, 655760), (368, 573790), (392, 538660), (460, 459032), (490, 430928), (560, 377062), (644, 327880), (736, 286895), (784, 269330), (805, 262304), (920, 229516), (980, 215464), (1120, 188531), (1127, 187360), (1171, 180320), (1288, 163940), (1568, 134665), (1610, 131152), (1840, 114758), (1960, 107732), (2254, 93680), (2342, 90160), (2576, 81970), (3220, 65576), (3680, 57379), (3920, 53866), (4508, 46840), (4684, 45080), (5152, 40985), (5635, 37472), (5855, 36064), (6440, 32788), (7840, 26933), (8197, 25760), (9016, 23420), (9368, 22540), (11270, 18736), (11710, 18032), (12880, 16394)]