198816640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:972

約数の個数: 128

約数和(自身を含む): 535818240

約数和(自身を除く): 337001600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 310, 320, 341, 352, 440, 496, 620, 640, 682, 704, 880, 911, 992, 1240, 1364, 1408, 1705, 1760, 1822, 1984, 2480, 2728, 3410, 3520, 3644, 3968, 4555, 4960, 5456, 6820, 7040, 7288, 9110, 9920, 10021, 10912, 13640, 14576, 18220, 19840, 20042, 21824, 27280, 28241, 29152, 36440, 40084, 43648, 50105, 54560, 56482, 58304, 72880, 80168, 100210, 109120, 112964, 116608, 141205, 145760, 160336, 200420, 218240, 225928, 282410, 291520, 310651, 320672, 400840, 451856, 564820, 583040, 621302, 641344, 801680, 903712, 1129640, 1242604, 1282688, 1553255, 1603360, 1807424, 2259280, 2485208, 3106510, 3206720, 3614848, 4518560, 4970416, 6213020, 6413440, 9037120, 9940832, 12426040, 18074240, 19881664, 24852080, 39763328, 49704160, 99408320, 198816640]

約数ペア:

[(1, 198816640), (2, 99408320), (4, 49704160), (5, 39763328), (8, 24852080), (10, 19881664), (11, 18074240), (16, 12426040), (20, 9940832), (22, 9037120), (31, 6413440), (32, 6213020), (40, 4970416), (44, 4518560), (55, 3614848), (62, 3206720), (64, 3106510), (80, 2485208), (88, 2259280), (110, 1807424), (124, 1603360), (128, 1553255), (155, 1282688), (160, 1242604), (176, 1129640), (220, 903712), (248, 801680), (310, 641344), (320, 621302), (341, 583040), (352, 564820), (440, 451856), (496, 400840), (620, 320672), (640, 310651), (682, 291520), (704, 282410), (880, 225928), (911, 218240), (992, 200420), (1240, 160336), (1364, 145760), (1408, 141205), (1705, 116608), (1760, 112964), (1822, 109120), (1984, 100210), (2480, 80168), (2728, 72880), (3410, 58304), (3520, 56482), (3644, 54560), (3968, 50105), (4555, 43648), (4960, 40084), (5456, 36440), (6820, 29152), (7040, 28241), (7288, 27280), (9110, 21824), (9920, 20042), (10021, 19840), (10912, 18220), (13640, 14576)]