20178707940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{347071}}^1$

素因数の和:347122

約数の個数: 144

約数和(自身を含む): 68220472320

約数和(自身を除く): 48041764380

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, 510, 570, 612, 646, 684, 765, 855, 969, 1020, 1140, 1292, 1530, 1615, 1710, 1938, 2907, 3060, 3230, 3420, 3876, 4845, 5814, 6460, 9690, 11628, 14535, 19380, 29070, 58140, 347071, 694142, 1041213, 1388284, 1735355, 2082426, 3123639, 3470710, 4164852, 5206065, 5900207, 6247278, 6594349, 6941420, 10412130, 11800414, 12494556, 13188698, 15618195, 17700621, 19783047, 20824260, 23600828, 26377396, 29501035, 31236390, 32971745, 35401242, 39566094, 53101863, 59002070, 59349141, 62472780, 65943490, 70802484, 79132188, 88503105, 98915235, 106203726, 112103933, 118004140, 118698282, 131886980, 177006210, 197830470, 212407452, 224207866, 237396564, 265509315, 296745705, 336311799, 354012420, 395660940, 448415732, 531018630, 560519665, 593491410, 672623598, 1008935397, 1062037260, 1121039330, 1186982820, 1345247196, 1681558995, 2017870794, 2242078660, 3363117990, 4035741588, 5044676985, 6726235980, 10089353970, 20178707940]

約数ペア:

[(1, 20178707940), (2, 10089353970), (3, 6726235980), (4, 5044676985), (5, 4035741588), (6, 3363117990), (9, 2242078660), (10, 2017870794), (12, 1681558995), (15, 1345247196), (17, 1186982820), (18, 1121039330), (19, 1062037260), (20, 1008935397), (30, 672623598), (34, 593491410), (36, 560519665), (38, 531018630), (45, 448415732), (51, 395660940), (57, 354012420), (60, 336311799), (68, 296745705), (76, 265509315), (85, 237396564), (90, 224207866), (95, 212407452), (102, 197830470), (114, 177006210), (153, 131886980), (170, 118698282), (171, 118004140), (180, 112103933), (190, 106203726), (204, 98915235), (228, 88503105), (255, 79132188), (285, 70802484), (306, 65943490), (323, 62472780), (340, 59349141), (342, 59002070), (380, 53101863), (510, 39566094), (570, 35401242), (612, 32971745), (646, 31236390), (684, 29501035), (765, 26377396), (855, 23600828), (969, 20824260), (1020, 19783047), (1140, 17700621), (1292, 15618195), (1530, 13188698), (1615, 12494556), (1710, 11800414), (1938, 10412130), (2907, 6941420), (3060, 6594349), (3230, 6247278), (3420, 5900207), (3876, 5206065), (4845, 4164852), (5814, 3470710), (6460, 3123639), (9690, 2082426), (11628, 1735355), (14535, 1388284), (19380, 1041213), (29070, 694142), (58140, 347071)]