203940400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:299

約数の個数: 120

約数和(自身を含む): 511467264

約数和(自身を除く): 307526864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 71, 80, 86, 100, 142, 167, 172, 200, 215, 284, 334, 344, 355, 400, 430, 568, 668, 688, 710, 835, 860, 1075, 1136, 1336, 1420, 1670, 1720, 1775, 2150, 2672, 2840, 3053, 3340, 3440, 3550, 4175, 4300, 5680, 6106, 6680, 7100, 7181, 8350, 8600, 11857, 12212, 13360, 14200, 14362, 15265, 16700, 17200, 23714, 24424, 28400, 28724, 30530, 33400, 35905, 47428, 48848, 57448, 59285, 61060, 66800, 71810, 76325, 94856, 114896, 118570, 122120, 143620, 152650, 179525, 189712, 237140, 244240, 287240, 296425, 305300, 359050, 474280, 509851, 574480, 592850, 610600, 718100, 948560, 1019702, 1185700, 1221200, 1436200, 2039404, 2371400, 2549255, 2872400, 4078808, 4742800, 5098510, 8157616, 10197020, 12746275, 20394040, 25492550, 40788080, 50985100, 101970200, 203940400]

約数ペア:

[(1, 203940400), (2, 101970200), (4, 50985100), (5, 40788080), (8, 25492550), (10, 20394040), (16, 12746275), (20, 10197020), (25, 8157616), (40, 5098510), (43, 4742800), (50, 4078808), (71, 2872400), (80, 2549255), (86, 2371400), (100, 2039404), (142, 1436200), (167, 1221200), (172, 1185700), (200, 1019702), (215, 948560), (284, 718100), (334, 610600), (344, 592850), (355, 574480), (400, 509851), (430, 474280), (568, 359050), (668, 305300), (688, 296425), (710, 287240), (835, 244240), (860, 237140), (1075, 189712), (1136, 179525), (1336, 152650), (1420, 143620), (1670, 122120), (1720, 118570), (1775, 114896), (2150, 94856), (2672, 76325), (2840, 71810), (3053, 66800), (3340, 61060), (3440, 59285), (3550, 57448), (4175, 48848), (4300, 47428), (5680, 35905), (6106, 33400), (6680, 30530), (7100, 28724), (7181, 28400), (8350, 24424), (8600, 23714), (11857, 17200), (12212, 16700), (13360, 15265), (14200, 14362)]