90081960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 279417600

約数和(自身を除く): 189335640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 97, 109, 120, 142, 194, 213, 218, 284, 291, 327, 355, 388, 426, 436, 485, 545, 568, 582, 654, 710, 776, 852, 872, 970, 1065, 1090, 1164, 1308, 1420, 1455, 1635, 1704, 1940, 2130, 2180, 2328, 2616, 2840, 2910, 3270, 3880, 4260, 4360, 5820, 6540, 6887, 7739, 8520, 10573, 11640, 13080, 13774, 15478, 20661, 21146, 23217, 27548, 30956, 31719, 34435, 38695, 41322, 42292, 46434, 52865, 55096, 61912, 63438, 68870, 77390, 82644, 84584, 92868, 103305, 105730, 116085, 126876, 137740, 154780, 158595, 165288, 185736, 206610, 211460, 232170, 253752, 275480, 309560, 317190, 413220, 422920, 464340, 634380, 750683, 826440, 928680, 1268760, 1501366, 2252049, 3002732, 3753415, 4504098, 6005464, 7506830, 9008196, 11260245, 15013660, 18016392, 22520490, 30027320, 45040980, 90081960]

約数ペア:

[(1, 90081960), (2, 45040980), (3, 30027320), (4, 22520490), (5, 18016392), (6, 15013660), (8, 11260245), (10, 9008196), (12, 7506830), (15, 6005464), (20, 4504098), (24, 3753415), (30, 3002732), (40, 2252049), (60, 1501366), (71, 1268760), (97, 928680), (109, 826440), (120, 750683), (142, 634380), (194, 464340), (213, 422920), (218, 413220), (284, 317190), (291, 309560), (327, 275480), (355, 253752), (388, 232170), (426, 211460), (436, 206610), (485, 185736), (545, 165288), (568, 158595), (582, 154780), (654, 137740), (710, 126876), (776, 116085), (852, 105730), (872, 103305), (970, 92868), (1065, 84584), (1090, 82644), (1164, 77390), (1308, 68870), (1420, 63438), (1455, 61912), (1635, 55096), (1704, 52865), (1940, 46434), (2130, 42292), (2180, 41322), (2328, 38695), (2616, 34435), (2840, 31719), (2910, 30956), (3270, 27548), (3880, 23217), (4260, 21146), (4360, 20661), (5820, 15478), (6540, 13774), (6887, 13080), (7739, 11640), (8520, 10573)]