20174580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:398

約数の個数: 144

約数和(自身を含む): 68402880

約数和(自身を除く): 48228300

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, 347, 380, 510, 570, 612, 646, 684, 694, 765, 855, 969, 1020, 1041, 1140, 1292, 1388, 1530, 1615, 1710, 1735, 1938, 2082, 2907, 3060, 3123, 3230, 3420, 3470, 3876, 4164, 4845, 5205, 5814, 5899, 6246, 6460, 6593, 6940, 9690, 10410, 11628, 11798, 12492, 13186, 14535, 15615, 17697, 19380, 19779, 20820, 23596, 26372, 29070, 29495, 31230, 32965, 35394, 39558, 53091, 58140, 58990, 59337, 62460, 65930, 70788, 79116, 88485, 98895, 106182, 112081, 117980, 118674, 131860, 176970, 197790, 212364, 224162, 237348, 265455, 296685, 336243, 353940, 395580, 448324, 530910, 560405, 593370, 672486, 1008729, 1061820, 1120810, 1186740, 1344972, 1681215, 2017458, 2241620, 3362430, 4034916, 5043645, 6724860, 10087290, 20174580]

約数ペア:

[(1, 20174580), (2, 10087290), (3, 6724860), (4, 5043645), (5, 4034916), (6, 3362430), (9, 2241620), (10, 2017458), (12, 1681215), (15, 1344972), (17, 1186740), (18, 1120810), (19, 1061820), (20, 1008729), (30, 672486), (34, 593370), (36, 560405), (38, 530910), (45, 448324), (51, 395580), (57, 353940), (60, 336243), (68, 296685), (76, 265455), (85, 237348), (90, 224162), (95, 212364), (102, 197790), (114, 176970), (153, 131860), (170, 118674), (171, 117980), (180, 112081), (190, 106182), (204, 98895), (228, 88485), (255, 79116), (285, 70788), (306, 65930), (323, 62460), (340, 59337), (342, 58990), (347, 58140), (380, 53091), (510, 39558), (570, 35394), (612, 32965), (646, 31230), (684, 29495), (694, 29070), (765, 26372), (855, 23596), (969, 20820), (1020, 19779), (1041, 19380), (1140, 17697), (1292, 15615), (1388, 14535), (1530, 13186), (1615, 12492), (1710, 11798), (1735, 11628), (1938, 10410), (2082, 9690), (2907, 6940), (3060, 6593), (3123, 6460), (3230, 6246), (3420, 5899), (3470, 5814), (3876, 5205), (4164, 4845)]