280381360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{521}}^1$

素因数の和:603

約数の個数: 120

約数和(自身を含む): 771298848

約数和(自身を除く): 490917488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 521, 560, 620, 868, 961, 1042, 1085, 1240, 1736, 1922, 2084, 2170, 2480, 2605, 3472, 3647, 3844, 4168, 4340, 4805, 5210, 6727, 7294, 7688, 8336, 8680, 9610, 10420, 13454, 14588, 15376, 16151, 17360, 18235, 19220, 20840, 26908, 29176, 32302, 33635, 36470, 38440, 41680, 53816, 58352, 64604, 67270, 72940, 76880, 80755, 107632, 113057, 129208, 134540, 145880, 161510, 226114, 258416, 269080, 291760, 323020, 452228, 500681, 538160, 565285, 646040, 904456, 1001362, 1130570, 1292080, 1808912, 2002724, 2261140, 2503405, 3504767, 4005448, 4522280, 5006810, 7009534, 8010896, 9044560, 10013620, 14019068, 17523835, 20027240, 28038136, 35047670, 40054480, 56076272, 70095340, 140190680, 280381360]

約数ペア:

[(1, 280381360), (2, 140190680), (4, 70095340), (5, 56076272), (7, 40054480), (8, 35047670), (10, 28038136), (14, 20027240), (16, 17523835), (20, 14019068), (28, 10013620), (31, 9044560), (35, 8010896), (40, 7009534), (56, 5006810), (62, 4522280), (70, 4005448), (80, 3504767), (112, 2503405), (124, 2261140), (140, 2002724), (155, 1808912), (217, 1292080), (248, 1130570), (280, 1001362), (310, 904456), (434, 646040), (496, 565285), (521, 538160), (560, 500681), (620, 452228), (868, 323020), (961, 291760), (1042, 269080), (1085, 258416), (1240, 226114), (1736, 161510), (1922, 145880), (2084, 134540), (2170, 129208), (2480, 113057), (2605, 107632), (3472, 80755), (3647, 76880), (3844, 72940), (4168, 67270), (4340, 64604), (4805, 58352), (5210, 53816), (6727, 41680), (7294, 38440), (7688, 36470), (8336, 33635), (8680, 32302), (9610, 29176), (10420, 26908), (13454, 20840), (14588, 19220), (15376, 18235), (16151, 17360)]