217997820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:436

約数の個数: 144

約数和(自身を含む): 686125440

約数和(自身を除く): 468127620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 109, 123, 164, 180, 205, 218, 246, 271, 327, 369, 410, 436, 492, 542, 545, 615, 654, 738, 813, 820, 981, 1084, 1090, 1230, 1308, 1355, 1476, 1626, 1635, 1845, 1962, 2180, 2439, 2460, 2710, 3252, 3270, 3690, 3924, 4065, 4469, 4878, 4905, 5420, 6540, 7380, 8130, 8938, 9756, 9810, 11111, 12195, 13407, 16260, 17876, 19620, 22222, 22345, 24390, 26814, 29539, 33333, 40221, 44444, 44690, 48780, 53628, 55555, 59078, 66666, 67035, 80442, 88617, 89380, 99999, 111110, 118156, 133332, 134070, 147695, 160884, 166665, 177234, 199998, 201105, 222220, 265851, 268140, 295390, 333330, 354468, 399996, 402210, 443085, 499995, 531702, 590780, 666660, 804420, 886170, 999990, 1063404, 1211099, 1329255, 1772340, 1999980, 2422198, 2658510, 3633297, 4844396, 5317020, 6055495, 7266594, 10899891, 12110990, 14533188, 18166485, 21799782, 24221980, 36332970, 43599564, 54499455, 72665940, 108998910, 217997820]

約数ペア:

[(1, 217997820), (2, 108998910), (3, 72665940), (4, 54499455), (5, 43599564), (6, 36332970), (9, 24221980), (10, 21799782), (12, 18166485), (15, 14533188), (18, 12110990), (20, 10899891), (30, 7266594), (36, 6055495), (41, 5317020), (45, 4844396), (60, 3633297), (82, 2658510), (90, 2422198), (109, 1999980), (123, 1772340), (164, 1329255), (180, 1211099), (205, 1063404), (218, 999990), (246, 886170), (271, 804420), (327, 666660), (369, 590780), (410, 531702), (436, 499995), (492, 443085), (542, 402210), (545, 399996), (615, 354468), (654, 333330), (738, 295390), (813, 268140), (820, 265851), (981, 222220), (1084, 201105), (1090, 199998), (1230, 177234), (1308, 166665), (1355, 160884), (1476, 147695), (1626, 134070), (1635, 133332), (1845, 118156), (1962, 111110), (2180, 99999), (2439, 89380), (2460, 88617), (2710, 80442), (3252, 67035), (3270, 66666), (3690, 59078), (3924, 55555), (4065, 53628), (4469, 48780), (4878, 44690), (4905, 44444), (5420, 40221), (6540, 33333), (7380, 29539), (8130, 26814), (8938, 24390), (9756, 22345), (9810, 22222), (11111, 19620), (12195, 17876), (13407, 16260)]