205758980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{751}}^1$

素因数の和:889

約数の個数: 96

約数和(自身を含む): 525557760

約数和(自身を除く): 319798780

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 103, 133, 140, 190, 206, 266, 380, 412, 515, 532, 665, 721, 751, 1030, 1330, 1442, 1502, 1957, 2060, 2660, 2884, 3004, 3605, 3755, 3914, 5257, 7210, 7510, 7828, 9785, 10514, 13699, 14269, 14420, 15020, 19570, 21028, 26285, 27398, 28538, 39140, 52570, 54796, 57076, 68495, 71345, 77353, 99883, 105140, 136990, 142690, 154706, 199766, 273980, 285380, 309412, 386765, 399532, 499415, 541471, 773530, 998830, 1082942, 1469707, 1547060, 1997660, 2165884, 2707355, 2939414, 5414710, 5878828, 7348535, 10287949, 10829420, 14697070, 20575898, 29394140, 41151796, 51439745, 102879490, 205758980]

約数ペア:

[(1, 205758980), (2, 102879490), (4, 51439745), (5, 41151796), (7, 29394140), (10, 20575898), (14, 14697070), (19, 10829420), (20, 10287949), (28, 7348535), (35, 5878828), (38, 5414710), (70, 2939414), (76, 2707355), (95, 2165884), (103, 1997660), (133, 1547060), (140, 1469707), (190, 1082942), (206, 998830), (266, 773530), (380, 541471), (412, 499415), (515, 399532), (532, 386765), (665, 309412), (721, 285380), (751, 273980), (1030, 199766), (1330, 154706), (1442, 142690), (1502, 136990), (1957, 105140), (2060, 99883), (2660, 77353), (2884, 71345), (3004, 68495), (3605, 57076), (3755, 54796), (3914, 52570), (5257, 39140), (7210, 28538), (7510, 27398), (7828, 26285), (9785, 21028), (10514, 19570), (13699, 15020), (14269, 14420)]