254163855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{251}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 497726208

約数和(自身を除く): 243562353

約数列:

[1, 3, 5, 11, 15, 17, 19, 33, 51, 55, 57, 85, 95, 165, 187, 209, 251, 255, 285, 323, 361, 561, 627, 753, 935, 969, 1045, 1083, 1255, 1615, 1805, 2761, 2805, 3135, 3553, 3765, 3971, 4267, 4769, 4845, 5415, 6137, 8283, 10659, 11913, 12801, 13805, 14307, 17765, 18411, 19855, 21335, 23845, 30685, 41415, 46937, 52459, 53295, 59565, 64005, 67507, 71535, 81073, 90611, 92055, 140811, 157377, 202521, 234685, 243219, 262295, 271833, 337535, 405365, 453055, 704055, 786885, 891803, 996721, 1012605, 1216095, 1359165, 1540387, 2675409, 2990163, 4459015, 4621161, 4983605, 7701935, 13377045, 14950815, 16944257, 23105805, 50832771, 84721285, 254163855]

約数ペア:

[(1, 254163855), (3, 84721285), (5, 50832771), (11, 23105805), (15, 16944257), (17, 14950815), (19, 13377045), (33, 7701935), (51, 4983605), (55, 4621161), (57, 4459015), (85, 2990163), (95, 2675409), (165, 1540387), (187, 1359165), (209, 1216095), (251, 1012605), (255, 996721), (285, 891803), (323, 786885), (361, 704055), (561, 453055), (627, 405365), (753, 337535), (935, 271833), (969, 262295), (1045, 243219), (1083, 234685), (1255, 202521), (1615, 157377), (1805, 140811), (2761, 92055), (2805, 90611), (3135, 81073), (3553, 71535), (3765, 67507), (3971, 64005), (4267, 59565), (4769, 53295), (4845, 52459), (5415, 46937), (6137, 41415), (8283, 30685), (10659, 23845), (11913, 21335), (12801, 19855), (13805, 18411), (14307, 17765)]