215955840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{821}}^1$

素因数の和:980

約数の個数: 128

約数和(自身を含む): 694228320

約数和(自身を除く): 478272480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 137, 160, 192, 240, 274, 320, 384, 411, 480, 548, 640, 685, 821, 822, 960, 1096, 1370, 1642, 1644, 1920, 2055, 2192, 2463, 2740, 3284, 3288, 4105, 4110, 4384, 4926, 5480, 6568, 6576, 8210, 8220, 8768, 9852, 10960, 12315, 13136, 13152, 16420, 16440, 17536, 19704, 21920, 24630, 26272, 26304, 32840, 32880, 39408, 43840, 49260, 52544, 52608, 65680, 65760, 78816, 87680, 98520, 105088, 112477, 131360, 131520, 157632, 197040, 224954, 262720, 263040, 315264, 337431, 394080, 449908, 525440, 562385, 674862, 788160, 899816, 1124770, 1349724, 1576320, 1687155, 1799632, 2249540, 2699448, 3374310, 3599264, 4499080, 5398896, 6748620, 7198528, 8998160, 10797792, 13497240, 14397056, 17996320, 21595584, 26994480, 35992640, 43191168, 53988960, 71985280, 107977920, 215955840]

約数ペア:

[(1, 215955840), (2, 107977920), (3, 71985280), (4, 53988960), (5, 43191168), (6, 35992640), (8, 26994480), (10, 21595584), (12, 17996320), (15, 14397056), (16, 13497240), (20, 10797792), (24, 8998160), (30, 7198528), (32, 6748620), (40, 5398896), (48, 4499080), (60, 3599264), (64, 3374310), (80, 2699448), (96, 2249540), (120, 1799632), (128, 1687155), (137, 1576320), (160, 1349724), (192, 1124770), (240, 899816), (274, 788160), (320, 674862), (384, 562385), (411, 525440), (480, 449908), (548, 394080), (640, 337431), (685, 315264), (821, 263040), (822, 262720), (960, 224954), (1096, 197040), (1370, 157632), (1642, 131520), (1644, 131360), (1920, 112477), (2055, 105088), (2192, 98520), (2463, 87680), (2740, 78816), (3284, 65760), (3288, 65680), (4105, 52608), (4110, 52544), (4384, 49260), (4926, 43840), (5480, 39408), (6568, 32880), (6576, 32840), (8210, 26304), (8220, 26272), (8768, 24630), (9852, 21920), (10960, 19704), (12315, 17536), (13136, 16440), (13152, 16420)]