257796180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1753}}^1$

素因数の和:1830

約数の個数: 144

約数和(自身を含む): 842761920

約数和(自身を除く): 584965740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 43, 45, 57, 60, 76, 86, 90, 95, 114, 129, 171, 172, 180, 190, 215, 228, 258, 285, 342, 380, 387, 430, 516, 570, 645, 684, 774, 817, 855, 860, 1140, 1290, 1548, 1634, 1710, 1753, 1935, 2451, 2580, 3268, 3420, 3506, 3870, 4085, 4902, 5259, 7012, 7353, 7740, 8170, 8765, 9804, 10518, 12255, 14706, 15777, 16340, 17530, 21036, 24510, 26295, 29412, 31554, 33307, 35060, 36765, 49020, 52590, 63108, 66614, 73530, 75379, 78885, 99921, 105180, 133228, 147060, 150758, 157770, 166535, 199842, 226137, 299763, 301516, 315540, 333070, 376895, 399684, 452274, 499605, 599526, 666140, 678411, 753790, 904548, 999210, 1130685, 1199052, 1356822, 1432201, 1498815, 1507580, 1998420, 2261370, 2713644, 2864402, 2997630, 3392055, 4296603, 4522740, 5728804, 5995260, 6784110, 7161005, 8593206, 12889809, 13568220, 14322010, 17186412, 21483015, 25779618, 28644020, 42966030, 51559236, 64449045, 85932060, 128898090, 257796180]

約数ペア:

[(1, 257796180), (2, 128898090), (3, 85932060), (4, 64449045), (5, 51559236), (6, 42966030), (9, 28644020), (10, 25779618), (12, 21483015), (15, 17186412), (18, 14322010), (19, 13568220), (20, 12889809), (30, 8593206), (36, 7161005), (38, 6784110), (43, 5995260), (45, 5728804), (57, 4522740), (60, 4296603), (76, 3392055), (86, 2997630), (90, 2864402), (95, 2713644), (114, 2261370), (129, 1998420), (171, 1507580), (172, 1498815), (180, 1432201), (190, 1356822), (215, 1199052), (228, 1130685), (258, 999210), (285, 904548), (342, 753790), (380, 678411), (387, 666140), (430, 599526), (516, 499605), (570, 452274), (645, 399684), (684, 376895), (774, 333070), (817, 315540), (855, 301516), (860, 299763), (1140, 226137), (1290, 199842), (1548, 166535), (1634, 157770), (1710, 150758), (1753, 147060), (1935, 133228), (2451, 105180), (2580, 99921), (3268, 78885), (3420, 75379), (3506, 73530), (3870, 66614), (4085, 63108), (4902, 52590), (5259, 49020), (7012, 36765), (7353, 35060), (7740, 33307), (8170, 31554), (8765, 29412), (9804, 26295), (10518, 24510), (12255, 21036), (14706, 17530), (15777, 16340)]