203801980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 469647360

約数和(自身を除く): 265845380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 103, 127, 164, 190, 205, 206, 254, 380, 410, 412, 508, 515, 635, 779, 820, 1030, 1270, 1558, 1957, 2060, 2413, 2540, 3116, 3895, 3914, 4223, 4826, 5207, 7790, 7828, 8446, 9652, 9785, 10414, 12065, 13081, 15580, 16892, 19570, 20828, 21115, 24130, 26035, 26162, 39140, 42230, 48260, 52070, 52324, 65405, 80237, 84460, 98933, 104140, 130810, 160474, 197866, 248539, 261620, 320948, 395732, 401185, 494665, 497078, 536321, 802370, 989330, 994156, 1072642, 1242695, 1604740, 1978660, 2145284, 2485390, 2681605, 4970780, 5363210, 10190099, 10726420, 20380198, 40760396, 50950495, 101900990, 203801980]

約数ペア:

[(1, 203801980), (2, 101900990), (4, 50950495), (5, 40760396), (10, 20380198), (19, 10726420), (20, 10190099), (38, 5363210), (41, 4970780), (76, 2681605), (82, 2485390), (95, 2145284), (103, 1978660), (127, 1604740), (164, 1242695), (190, 1072642), (205, 994156), (206, 989330), (254, 802370), (380, 536321), (410, 497078), (412, 494665), (508, 401185), (515, 395732), (635, 320948), (779, 261620), (820, 248539), (1030, 197866), (1270, 160474), (1558, 130810), (1957, 104140), (2060, 98933), (2413, 84460), (2540, 80237), (3116, 65405), (3895, 52324), (3914, 52070), (4223, 48260), (4826, 42230), (5207, 39140), (7790, 26162), (7828, 26035), (8446, 24130), (9652, 21115), (9785, 20828), (10414, 19570), (12065, 16892), (13081, 15580)]