180470840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 465315840

約数和(自身を除く): 284845000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 101, 110, 124, 131, 155, 202, 220, 248, 262, 310, 341, 404, 440, 505, 524, 620, 655, 682, 808, 1010, 1048, 1111, 1240, 1310, 1364, 1441, 1705, 2020, 2222, 2620, 2728, 2882, 3131, 3410, 4040, 4061, 4444, 5240, 5555, 5764, 6262, 6820, 7205, 8122, 8888, 11110, 11528, 12524, 13231, 13640, 14410, 15655, 16244, 20305, 22220, 25048, 26462, 28820, 31310, 32488, 34441, 40610, 44440, 44671, 52924, 57640, 62620, 66155, 68882, 81220, 89342, 105848, 125240, 132310, 137764, 145541, 162440, 172205, 178684, 223355, 264620, 275528, 291082, 344410, 357368, 410161, 446710, 529240, 582164, 688820, 727705, 820322, 893420, 1164328, 1377640, 1455410, 1640644, 1786840, 2050805, 2910820, 3281288, 4101610, 4511771, 5821640, 8203220, 9023542, 16406440, 18047084, 22558855, 36094168, 45117710, 90235420, 180470840]

約数ペア:

[(1, 180470840), (2, 90235420), (4, 45117710), (5, 36094168), (8, 22558855), (10, 18047084), (11, 16406440), (20, 9023542), (22, 8203220), (31, 5821640), (40, 4511771), (44, 4101610), (55, 3281288), (62, 2910820), (88, 2050805), (101, 1786840), (110, 1640644), (124, 1455410), (131, 1377640), (155, 1164328), (202, 893420), (220, 820322), (248, 727705), (262, 688820), (310, 582164), (341, 529240), (404, 446710), (440, 410161), (505, 357368), (524, 344410), (620, 291082), (655, 275528), (682, 264620), (808, 223355), (1010, 178684), (1048, 172205), (1111, 162440), (1240, 145541), (1310, 137764), (1364, 132310), (1441, 125240), (1705, 105848), (2020, 89342), (2222, 81220), (2620, 68882), (2728, 66155), (2882, 62620), (3131, 57640), (3410, 52924), (4040, 44671), (4061, 44440), (4444, 40610), (5240, 34441), (5555, 32488), (5764, 31310), (6262, 28820), (6820, 26462), (7205, 25048), (8122, 22220), (8888, 20305), (11110, 16244), (11528, 15655), (12524, 14410), (13231, 13640)]