261775160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:373

約数の個数: 128

約数和(自身を含む): 658022400

約数和(自身を除く): 396247240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 41, 62, 76, 82, 95, 124, 152, 155, 164, 190, 205, 248, 271, 310, 328, 380, 410, 542, 589, 620, 760, 779, 820, 1084, 1178, 1240, 1271, 1355, 1558, 1640, 2168, 2356, 2542, 2710, 2945, 3116, 3895, 4712, 5084, 5149, 5420, 5890, 6232, 6355, 7790, 8401, 10168, 10298, 10840, 11111, 11780, 12710, 15580, 16802, 20596, 22222, 23560, 24149, 25420, 25745, 31160, 33604, 41192, 42005, 44444, 48298, 50840, 51490, 55555, 67208, 84010, 88888, 96596, 102980, 111110, 120745, 159619, 168020, 193192, 205960, 211109, 222220, 241490, 319238, 336040, 344441, 422218, 444440, 482980, 638476, 688882, 798095, 844436, 965960, 1055545, 1276952, 1377764, 1596190, 1688872, 1722205, 2111090, 2755528, 3192380, 3444410, 4222180, 6384760, 6544379, 6888820, 8444360, 13088758, 13777640, 26177516, 32721895, 52355032, 65443790, 130887580, 261775160]

約数ペア:

[(1, 261775160), (2, 130887580), (4, 65443790), (5, 52355032), (8, 32721895), (10, 26177516), (19, 13777640), (20, 13088758), (31, 8444360), (38, 6888820), (40, 6544379), (41, 6384760), (62, 4222180), (76, 3444410), (82, 3192380), (95, 2755528), (124, 2111090), (152, 1722205), (155, 1688872), (164, 1596190), (190, 1377764), (205, 1276952), (248, 1055545), (271, 965960), (310, 844436), (328, 798095), (380, 688882), (410, 638476), (542, 482980), (589, 444440), (620, 422218), (760, 344441), (779, 336040), (820, 319238), (1084, 241490), (1178, 222220), (1240, 211109), (1271, 205960), (1355, 193192), (1558, 168020), (1640, 159619), (2168, 120745), (2356, 111110), (2542, 102980), (2710, 96596), (2945, 88888), (3116, 84010), (3895, 67208), (4712, 55555), (5084, 51490), (5149, 50840), (5420, 48298), (5890, 44444), (6232, 42005), (6355, 41192), (7790, 33604), (8401, 31160), (10168, 25745), (10298, 25420), (10840, 24149), (11111, 23560), (11780, 22222), (12710, 20596), (15580, 16802)]