287156716

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:811

約数の個数: 72

約数和(自身を含む): 637072128

約数和(自身を除く): 349915412

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 131, 154, 242, 262, 308, 484, 524, 647, 847, 917, 1294, 1441, 1694, 1834, 2588, 2882, 3388, 3668, 4529, 5764, 7117, 9058, 10087, 14234, 15851, 18116, 20174, 28468, 31702, 40348, 49819, 63404, 78287, 84757, 99638, 110957, 156574, 169514, 199276, 221914, 313148, 339028, 443828, 548009, 593299, 932327, 1096018, 1186598, 1864654, 2192036, 2373196, 3729308, 6526289, 10255597, 13052578, 20511194, 26105156, 41022388, 71789179, 143578358, 287156716]

約数ペア:

[(1, 287156716), (2, 143578358), (4, 71789179), (7, 41022388), (11, 26105156), (14, 20511194), (22, 13052578), (28, 10255597), (44, 6526289), (77, 3729308), (121, 2373196), (131, 2192036), (154, 1864654), (242, 1186598), (262, 1096018), (308, 932327), (484, 593299), (524, 548009), (647, 443828), (847, 339028), (917, 313148), (1294, 221914), (1441, 199276), (1694, 169514), (1834, 156574), (2588, 110957), (2882, 99638), (3388, 84757), (3668, 78287), (4529, 63404), (5764, 49819), (7117, 40348), (9058, 31702), (10087, 28468), (14234, 20174), (15851, 18116)]