551429480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 1456358400

約数和(自身を除く): 904928920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 97, 140, 158, 194, 257, 280, 316, 388, 395, 485, 514, 553, 632, 679, 776, 790, 970, 1028, 1106, 1285, 1358, 1580, 1799, 1940, 2056, 2212, 2570, 2716, 2765, 3160, 3395, 3598, 3880, 4424, 5140, 5432, 5530, 6790, 7196, 7663, 8995, 10280, 11060, 13580, 14392, 15326, 17990, 20303, 22120, 24929, 27160, 30652, 35980, 38315, 40606, 49858, 53641, 61304, 71960, 76630, 81212, 99716, 101515, 107282, 124645, 142121, 153260, 162424, 174503, 199432, 203030, 214564, 249290, 268205, 284242, 306520, 349006, 406060, 429128, 498580, 536410, 568484, 698012, 710605, 812120, 872515, 997160, 1072820, 1136968, 1396024, 1421210, 1745030, 1969391, 2145640, 2842420, 3490060, 3938782, 5684840, 6980120, 7877564, 9846955, 13785737, 15755128, 19693910, 27571474, 39387820, 55142948, 68928685, 78775640, 110285896, 137857370, 275714740, 551429480]

約数ペア:

[(1, 551429480), (2, 275714740), (4, 137857370), (5, 110285896), (7, 78775640), (8, 68928685), (10, 55142948), (14, 39387820), (20, 27571474), (28, 19693910), (35, 15755128), (40, 13785737), (56, 9846955), (70, 7877564), (79, 6980120), (97, 5684840), (140, 3938782), (158, 3490060), (194, 2842420), (257, 2145640), (280, 1969391), (316, 1745030), (388, 1421210), (395, 1396024), (485, 1136968), (514, 1072820), (553, 997160), (632, 872515), (679, 812120), (776, 710605), (790, 698012), (970, 568484), (1028, 536410), (1106, 498580), (1285, 429128), (1358, 406060), (1580, 349006), (1799, 306520), (1940, 284242), (2056, 268205), (2212, 249290), (2570, 214564), (2716, 203030), (2765, 199432), (3160, 174503), (3395, 162424), (3598, 153260), (3880, 142121), (4424, 124645), (5140, 107282), (5432, 101515), (5530, 99716), (6790, 81212), (7196, 76630), (7663, 71960), (8995, 61304), (10280, 53641), (11060, 49858), (13580, 40606), (14392, 38315), (15326, 35980), (17990, 30652), (20303, 27160), (22120, 24929)]